International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control EngineeringA monthly Peer-reviewed & Refereed journal
IJIREEICE meets the suggestive parameters outlined in the latest University Grants Commission (UGC) for peer-reviewed journals, ensuring high standards of research integrity, publication ethics, and academic excellence.
Application of SSSC FACTS Device in Reactive power flow Solution using Biogeography-based optimization
Kirti Joshi, Vipul Kumar, Divya Mathur
DOI: 10.17148/IJIREEICE.2015.3401
Abstract: This paper describe the reactive power flow solution based BBO to amend the performance of the power system. Biogeography-based optimization is incorporating flexible AC transmission systems (FACTS). Static Synchronous Series Compensator (SSSC) is type of FACTS device used in this paper. In this BBO Store best parent solution and apply mutation and migration process on remaining parents to produce best fitted child sets. This paper define the problem of optimal power flow solution is very severe in modern interconnected transmission system the control of reactive and real power has to be fast to insure that the system remains stable under all condition of operation. The use of thyristor based controllers enable a transmission system to be flexible using SSSC FACTS is a series connected FACTS controller. The proposed BBO method gives better solution quality compared to particle swarm optimization with static synchronous series compensator facts device. The simulation results show that the proposed BBO algorithm is effective, fast and accurate in finding the optimal parameter settings for FACTS devices to solve OPF problems. BBO algorithm is tested on IEEE 14-bus with SSSC FACTS device gives better solution to enhance the system performance.
Keywords: Power system operation, FACTS, Biogeography based optimization, optimal power flow, SSSC Device.
Comparative Analysis of Single Phase Cascaded H-Bridge Multilevel Inverter
Jainil K. Shah, Manish S. Patel
DOI: 10.17148/IJIREEICE.2015.3402
Abstract: Total harmonic distortion (THD) is a term used to describe the net deviation of a nonlinear waveform from ideal sine waveform characteristics. Total harmonic distortion is the ratio between the RMS value of the harmonics and the RMS value of the fundamental. In multilevel Inverter As we try to increase the number of levels THD reduces. This paper contains different single phase multilevel inverter configuration. Different cascaded H bridge type of inverters are pointed out in this paper. Cascaded H bridge type multilevel inverters are built in MATLAB simulation and results are illustrated.
Keywords: Total Harmonic Distortion, Multilevel inverters, Cascaded H bridge.
Design and Implementation of Booth Multiplier using Approximate Adders
Shital Keskar, Prof T. S. Mote
DOI: 10.17148/IJIREEICE.2015.3403
Abstract: Low power is an imperative requirement for portable multimedia devices employing various signal processing algorithms and architectures. In most multimedia applications, human beings can gather useful information from slightly erroneous outputs. Therefore, we do not need to produce exactly correct numerical outputs. Previous research in this context exploits error resiliency primarily through voltage overscaling, utilizing algorithmic and architectural techniques to mitigate the resulting errors. In this paper, we propose logic complexity reduction at the transistor level as an alternative approach to take advantage of the relaxation of numerical accuracy. We demonstrate this concept by proposing various imprecise or approximate full adder cells with reduced complexity at the transistor level, and utilize them to design approximate multi-bit adders. In addition to the inherent reduction in switched capacitance, our techniques result in significantly shorter critical paths, enabling voltage scaling. Keyword: Approximate computing, low power, mirror adder. Booths multiplier, Wallace tree multiplier
A Novel Steganography Scheme via the use of Alpha channel
Prof. ArjunNichal, Mr.Aniket Jadhav, Mr. Krishna Pingale, Mr.Chaitanya Mohite, Mr. Sachin Ponde
DOI: 10.17148/IJIREEICE.2015.3404
Abstract: Steganography is the art or practice of concealing a message, image, or file within another message, image, or file. It is the art and science of communicating in such a way that the presence of a message cannot be detected. Generally, the hidden messages will appear to be (or be part of) something else: images, articles, shopping lists, or some other cover text. For example, the hidden message may be in invisible ink between the visible lines of a private letter. In this paper we proposed steganography based on alpha channel.
Keywords: Steganography, Alpha channel, Data hiding.
An Automatic Wavelet based non-linear Image Enhancement for both Grayscale & Color Images
Prof. ArjunNichal, Ms.VasudhaPatil, Ms.NehaliPawar, Ms.AshwiniShinde
DOI: 10.17148/IJIREEICE.2015.3405
Abstract: A proposed wavelet-based dynamic range compression algorithm is used to improve the visual quality of digital images captured in the high dynamic range scenes with non-uniform lighting conditions. The fast image enhancement algorithm which provides dynamic range compression preserving the local contrast and tonal rendition is a very good candidate in aerial imagery applications such as image interpretation for defense and security tasks. This algorithm can further be applied to video streaming for aviation safety. In this paper the latest version of the proposed algorithm which is able to enhance images so that the enhanced images are better than direct human observation, is presented. The results obtained by applying the algorithm to numerous images show strong robustness and high image quality.
Keywords: Enhancement, Wavelet based enhancement, Low contrast.
Abstract: Arduino ATMEGA-328 microcontroller has been programmed for various applications. By using the power jack cable, arduino microcontroller has been programmed so that the execution of the program may takes place. Various kinds of arduino board are present in the market. In this paper, Arduino UNO ATMEGA-328 microcontroller is described in a detailed manner. Arduino software is installed in the computer and so that we can edit and upload the program according to the applications. Mainly these arduino software supports c and c++ programming languages. Various inputs and outputs are present in the arduino board and therefore simultaneously 8 input and output ports can be used for various applications. Some of the applications used by using arduino boards are rotating general motor, stepper motor, control valve open, etc.,
Constructing High Resolution Satellite Image Using Interpolation Algorithm And Fast Nlm Filter
S.Sudaroli, ChitraValavan
DOI: 10.17148/IJIREEICE.2015.3407
Abstract: In remote sensing, resolution of an image is limited by diffraction, atmospheric distortion and imperfect focus. Our proposed Resolution Enhancement(RE) scheme uses Dual tree-complex wavelet transform(DT-CWT), Lanczos interpolation and Fast NLM filtering for post processing. Fast Non Local Means filtering speed up the processing time compared to the NLM filtering. The Lanczos interpolator is used to interpolate the high frequency sub- bands and low resolution input image. Now these high frequency sub-bands are passed through Fast NLM filter for good clarity. Inverse DT-CWT is applied to obtain resolution enhanced image. In parallel performance of Fast NLM filter is also calculated for different set of input images using Mean Square Error(MSE) and Signal-to-noise ratio(SNR).
Keywords: Lanczos interpolator, Fast NLM filter, Mean Square Error(MSE) and Signal-to-noise ratio(SNR), Summed Square Index (SSI),Dual tree-complex wavelet transform(DT-CWT).
Implementation of Adaptive Algorithm for PCG Signal Denoising
Mr. R. M. Potdar, Dr. Mekhram Meshram, Naveen Dewangan, Dr. Ramesh Kumar
DOI: 10.17148/IJIREEICE.2015.3408
Abstract: Heart sound signals will replicate the physiological and pathological characteristics of the heart. every heart beat is incredibly advanced and short and also the main frequency of heart sound signals is within the range of 10Hz to 250Hz. Phonocardiogram will record heart sounds, noise and also the extra sounds. Therefore it's a crucial complement to form up center diagnostic technique examination. Heart sounds are very weak acoustic signals. Within the method to gather heart sound signals it's prone to external acoustic signals and electrical noise interference, especially, the friction caused by subjects respiratory or body movement. The sounds made by friction within the phonocardiogram may produce to an enormous busy signal. Thus, it is vital to research heart sound accurately and eliminates the busy signal with success throughout pre-processing.
The objective of this work is to serve as how Noise can be combated using adaptive filter for PCG signal. The problem of controlling the noise level has been one of the research topics over the years. This work focuses on Adaptive filtering algorithms and some of the applications of adaptive filter. The main concept is to use the LMS (Least-Mean-Square) algorithm to develop an adaptive filter that can be used in Adaptive noise Cancellation (ANC) application. In this paper we will learn the various algorithms of LMS (Least Mean Square), NLMS (Normalized Least Mean Square) and RLS (Recursive Least Square) on MATLAB platform with the intention to compare their performance in noise cancellation. The adaptive filter in MATLAB with a noisy tone signal and white noise signal and analyze the performance of algorithms in terms of MSE (Mean Squared Error), percentage noise removal, Signal to Noise Ratio, computational complexity and stability. The Adaptive Filter maximizes the signal to noise ratio & minimize the Mean Squared Error and compare their performance with respect to stability. Adaptive Noise Canceller is useful to improve the S/N ratio.
This Paper involves the study of the principles of adaptive Noise Cancellation (ANC) and its Applications. Adaptive noise Cancellation is another technique of estimating signals corrupted by additive noise or interference. Its advantage lies in this, with no apriority estimates of signal or noise, levels of noise rejection are attainable that would be difficult or not possible to achieve by other signal processing methods of removing noise. Its cost, inevitably, is that it wants two inputs - a primary input containing the corrupted signal and a reference input containing noise correlate in some unknown approach with the first noise. The reference input is adaptively filtered and subtracted from the first input to get the signal estimate. Adaptive filtering before subtraction permits the treatment of inputs that are settled or random, stationary or time-variable. The result of uncorrelated noises in primary and reference inputs, and presence of signal parts within the reference input on the ANC performance is investigated. it's shown that within the absence of uncorrelated noises and once the reference is free from signal, noise within the primary input can be eliminated while not signal distortion. A configuration of the adaptive noise canceller that does not need a reference input and is incredibly helpful applications is additionally conferred.
Keywords: LMS (Least Mean Square), NLMS (Normalized Least Mean Square), RLS (Recursive Least Square), MSE (Mean Squared Error).
Maximum Solar Power Generation through Optimization of Tilt Solar Angles of Solar Panels by Heuristic Technique
T.Som, R.Pathak
DOI: 10.17148/IJIREEICE.2015.3409
Abstract: The optimal power generation from a solar power system for a detailed loading and irradiation scenario prevailing at a specific location in India has been determined. Three different types of loads reflecting economic and residential activity at the location has been considered. Daily global and diffuse solar irradiation data corresponding to two different seasons of the year have been used in the radiation model for the solar panel. The optimal operation is being determined through optimal choice of the tilt angle for the solar panel in order to collect the most concentrated solar irradiation. The mathematical technique used is a modified version of the conventional genetic algorithm (GA) termed Tuned Genetic Algorithm (TGA). TGA is robust against the above discussed variations by virtue of metaheuristic nature and is more reliable in avoiding a local minimum of the objective function than GA. The TGA- evaluated total solar power generations for each loading system in India utilizing different values of tilt angles of solar panel have been compared. The solar power generation is found to exceed demand by the largest margins for all three loads in summer season during optimal power operation. For most economic operation of the solar power system during the summer season, a 60 degree angle of tilt was found to be optimal for residential loads, whereas 50 degree tilt angle was optimal for the other loads studied.
Keywords: Solar Angle,Irradiation, TGA, Optimal Power.
Gsm and Wireless Sensor Network BASED Smart Automated Irrigation System
Chimata Suhasini, Diwakar R. Marur
DOI: 10.17148/IJIREEICE.2015.3410
Abstract: The farmers working in the farm lands are solely dependent on the rains and bore wells for irrigation. Even if the farmland has a water-pump, manual intervention by the farmers is required to turn the pump ON/OFF whenever needed. Therefore using an Android application which helps the farmer to ON/OFF the motor without his physical presence in the field. This paper has real time sensing and control of an irrigation system. When the condition of water in the agricultural farm is abnormal then the system automatically switches OFF. Based on the soil moisture, through relay the pumping motor will be automatically switch on or off which saves the water and on the other hand the plant can get most appropriate water level which increases the productivity of the crop. Using GSM (Global System for Mobile communication) technology which is used to inform the user about the exact condition of the field. This information is passed onto the user request in the form of SMS (Short Message Service). The proposed system provides uniform and required water level for the agricultural farm and it avoids water wastage.
Emerging Vehicle Control Using Embedded and Wireless in Transportation System
Abinaya.M, Uthira Devi.R, Yogeshwaran.M
DOI: 10.17148/IJIREEICE.2015.3411
Abstract: Vehicle security and control is a more challenging process in day today life. Almost all people are having their own vehicle hence vehicle security and control becomes very essential. The need for the proposed system is to provide security to the vehicle by engine locking system and to provide enhancement to human life through accident detection, lane detection and by detecting the driver’s fatigue. This technique prevents the vehicle from accessing by the unauthorized person and finds the location of accident along with driver’s psychic behavior to provide 90% of human life enhancement. This system describes a real time safety prototype control for a vehicle.
Keywords: microcontroller, sensors, GSM, GPS, display, alerting system
Comparative Study of Filter Performance for Separation of Singing Voice from Music Accompaniment
Harshada P. Burute, Madhuri Patil, Kirtimalini Chaudhari, Dr. Pradeep B. Mane
DOI: 10.17148/IJIREEICE.2015.3412
Abstract: An audio signal is a representation of sound. Audio signals have frequency range 20 to 20 kHz. Audio signals may be synthesized directly. A mixture refers to the physical combination of two or more substances on which the identities and are mixed in the form to separate out. An audio signal classification system should be able to categorize different audio input formats (speech, background noise, and music). Audio signal classification system analyzes the input audio signal and describes the signal at the output. These are used to characterize both music and speech signals. The categorization can be done on the basis of pitch, music content, music tempo and rhythm. From the comparative results it is observed that the wiener filter is better for noise reduction than others. We refer SEGSNR parameter for study because of its improved filter performance. Separating singing voice from music is very useful in many applications.
Keywords: music genre, mixture, audio signal classification, pitch, music tempo, music rhythm.
Multiplexer Based Digital Integrated Circuit Tester
Hema Thota, Sridhar Sammeta, Prudhvi Raj Thota
DOI: 10.17148/IJIREEICE.2015.3413
Abstract: The basic function of the digital IC tester is to test digital IC for correct logical functioning as described in the truth table. It can test digital ICs having 14 pins. This model applies the necessary signals to the inputs of the IC, monitoring the outputs at each stage and comparing them with the outputs in the truth table. Any discrepancy in the functioning of the IC results in a fail indication through LEDs. The testing procedure is accomplished with the help of keys present on the main board. At this stage we had completed to test the most common used digital IC's used in our laboratories, mainly belonging to the 74TTL series. This tests various types of ICs like AND, OR, EX-OR, NAND, NOR and EX-NOR gates.
Keywords: Inequality detector, Multiplexer, Flip-flops, Socket and Counter.
Clock-Less Design Methodology For Digital System Design
Arun Sankar M S, Vishnu V Gopi, Padmakumar K, Dominic George Joseph
DOI: 10.17148/IJIREEICE.2015.3414
Abstract: As design systems have grown in complexity and clock speeds are constantly increasing, several limitations to the conceptual framework of synchronous design have begun to be noticed. Some notable problems due to higher performance demand are difficulty in global distribution of clock, clock skew, high power dissipation, interfacing difficulties and traversing the chip‟s longest wire in one clock cycle. It is therefore not a surprise that the area of asynchronous circuits and systems, which generally do not suffer from these problems are gaining importance. Here we take into account new research concept which improves digital system implementations, which is basically asynchronous digital design. Asynchronous systems can be realized using clock-less chip implementation techniques which avoids the clock. This system gives importance to the arrival of data and sequence, only when required, thus reducing power consumption, EMI etc. The proposed methodology ensures the validity of the data by taking care of glitches, delays and hazards. The design of a new methodology for asynchronous system development is discussed in this paper.
The Possibilities of 5G Communicationusing Xampling Process
K.V. Rama Krishna, B. Praneeth Reddy, G. Naresh Kumar
DOI: 10.17148/IJIREEICE.2015.3415
Abstract: In this paper we are going to explain about the working of 5G communication and its scope. By using Xampling method we can perform the processing of signals for high frequencies. We are proving it by using Mat-lab Software Tool. We performed the experiments by using the theoretical formulas and implementing them in the Mat- Lab Software GUI Tool. Weare generating the signals by using the formulas and processing them as per the rules of communications systems. By using Mat-Lab software tool we can generate the signals of High frequency (GHz) in the GUI. By using that we can clearly explain the possibilities of implementing the next generation of communication system. By using this paper as reference we can try the further generation of communications also.
Keywords: Xampling, Mat-lab, GUI, High frequency signals, Modulation techniques, Nyquist rate.
Professor R.K.Moje, Mr Chandan Kumar Shukla, Miss Renuka D Kolhe, Miss Sukriti Bhat
DOI: 10.17148/IJIREEICE.2015.3416
Abstract: In recent years, augmented reality technology is being widely used in various areas. Augmented Reality (AR) is basically a real view modified by a computer. It uses computer generated imagery and sounds to enhance one’s current perception of reality. While virtual reality describes an imaginary world that exists in computers and our minds, augmented reality is a mixture of real world and virtual world. It is therefore different for the human mind to tell the difference between real world and augmented reality. In this paper, we describe the development of a prototype that uses augmented reality to control electrical devices like fan, motors, AC etc by hand gestures. Up to 8 electrical devices can be controlled. A virtual plane is present between user and display. The user interacts with this virtual plane and hands and fingers are tracked and gestures recognized. These gestures are then used to select the button on the display which are used for selecting a particular device and to turn it on or off as per the requirement of user. This project is very helpful for people of physical limitations like old age people, physically disabled people and also used for industrial and office work.
Keywords: Augmented Reality (AR); Virtual Reality (VR); Hand Gesture; Air Touch; Human Computer Interaction (HCI)
Abstract: Nowadays with increased population in world, necessities of increased productivity of land, with the use of minimum water and electricity and use of recent technologies, has been increasing day by day. This paper aims at study and demonstration of how soil humidity based irrigation of land helps to fulfill above necessities. Implementation of humidity sensor, adjustable speed drives and information and communication technology (ICT) provides many advantages from various points of view. In Vidharbha region of Maharashtra, percentage irrigation is less and whatever is present are all of traditional type; in which excessive use of water and electricity are the main drawbacks. The use of PLC and ÎĽC along with various sensors can prove a milestone in increasing the productivity of land, reducing water use thus reducing soil infertility, reducing use of electricity and making the irrigation system smart and user friendly, with considerable reduction in labor work and time of farmers. This paper discusses various features and technologies of automation in farming that can be integrated with ICT devices. This paper explains the importance of use of ASD for motor and wireless control of system, which proves important step towards smart India- smart Indians.
Keywords: Adjustable Speed Drives, Microcontroller, Programmable Logic Controllers, Supervisory Control and Data Acquisition
Design, Analysis and Selection of Electric and Magnetic loading for Different Rating of Squirrel Cage Induction Motors by using MATLAB GUI Software
Dimple Sharma, R.K. Saini, Sunil Pathania
DOI: 10.17148/IJIREEICE.2015.3418
Abstract: This paper presents the designing of the main dimensions and the selection of the magnetic and electric loading for different rating of squirrel cage induction motors to reduce the overall losses and to improve the power factor. A software development strategy for the design of main dimensions and the effects of various factors are studies to select the best parameters for the particular ratings of the machines. The redesign time can be reduced with the help of this software during the course of learning and manufacturing of the inductions motors. The idea of designing the main dimensions of three phase squirrel cage induction motor by MAT LAB GUI is simple fast and friendly nature.
Keywords: Three phase squirrel cage induction motor, MAT LAB- GUI.
Designing a tote Quad copter, an Unmanned Aerial Vehicle (UAV)
K.Srinivasu, A.Vijaya Shanthi
DOI: 10.17148/IJIREEICE.2015.3419
Abstract: The main concern of this paper is to notify the designing of a quad copter which is capable of carrying a payload and the camera, as it is used to determine the location of the dock. A quad copter is designed such that it can correctly determine the location of a target ground station while hovering and then land on the target. To deal with quad copter, weight is the main constrain which is important and play a predominant role in these unmanned aerial vehicles. So, from this paper we can also make the design of a quad copter with lightweight.
Voice Recognition and Voice Navigation for Blind using GPS
Manisha Bansode, Shivani Jadhav, Anjali Kashyap
DOI: 10.17148/IJIREEICE.2015.3420
Abstract: In this paper we have presented the design of the voice based navigation system for blind using voice recognition module and GPS module implemented on arduino board. This system helps the blind person to navigate. The blind person will give the destination’s name as the input to voice recognition module. GPS module continously receives the latitude and longitude of the current location . GPS compares it with the destination’s latitude and longitude. The blind person receives the pronounced directions which he needs to follow to reach his destination.
To Study the Adequacy Assessment of Chitradurga distribution substation using MCS
Shruthi.M, S.B.Karajgi
DOI: 10.17148/IJIREEICE.2015.3421
Abstract: Power system has dynamic behavior as it faces various disturbances like sudden variation in load, sudden variation in generation and different faults. Due to the variation of load demand, the operation, maintenance and control of power system have become a challenging task. To meet the load requirements, many noticeable research activities are going on in the field of deregulation, restructuring of power system, utilization of renewable energy sources and installing small generators at the load centre referred to as Distributed Generation (DG) etc. Furthermore, among many different types of DG units, renewable DG units are widely accepted. In this paper, adequacy evaluation of the 220kV distribution system with DG has been proposed. This concept deals with installation of additional capacity with the existing capacity for supplying load, which is provided by renewable DG units. Reliability index such as average unsupplied load (AUL) is calculated using Monte Carlo simulation (MCS).
Performance Evaluation of MIMO-OFDM Schemes in Presence of Carrier Frequency Offset (CFO)
Ankita K. Panchal
DOI: 10.17148/IJIREEICE.2015.3422
Abstract: Wireless designers constantly seek to improve the data rate, spectral efficiency, coverage of wireless networks and link reliability. Orthogonal Frequency Division Multiplexing (OFDM) technique has been widely accepted for the transmission of high rate data. Multiple Input Multiple Output (MIMO) techniques provide strong diversity gain and can increase the link throughput with the use of Adaptive Modulation and Coding (AMC). The idea behind AMC is to dynamically adapt the modulation and coding scheme to the channel conditions so as to achieve the highest spectral efficiency at all times. Further MIMO schemes can be combined with OFDM as STBC-OFDM or SFBC-OFDM. Combining the advantages of space-time coding and OFDM is attractive in wireless system designs. However, one of the main drawbacks is its high sensitivity to frequency offsets since the orthogonality between sub carriers is destroyed thus leading to considerable system performance degradation. The Carrier Frequency Offset (CFO) arises mainly due to the Doppler shift and/or oscillator mismatch. Hence, the effect, estimation and correction of frequency offsets have been subject of intensive research in the decade. Performance of various MIMO techniques is evaluated with combination of OFDM. The objective is optimum combination of MIMO-OFDM in presence of CFO. This system is also implemented as per WiMAX standard. The performance is also observed with different modulation techniques and multiple antenna system for multi-users.
Keywords: Carrier frequency offset (CFO); Orthogonal Frequency Division Multiplexing OFDM; Multiple Input Multiple Output (MIMO); Space Time Block Code-OFDM (STBC-OFDM); Space Frequency Block Code-OFDM (SFBC-OFDM)
Comarision Of Distributed Power-Flow Controller (DPFC) And Generalized Unified Power Flow Controller (GUPFC) In Power Quality Improvement
D. Raja Reddy, Dr. B. Venkata Prasanth
DOI: 10.17148/IJIREEICE.2015.3423
Abstract: The present paper describes the steady-state response and control of power in transmission line equipped with FACTS devices. Detailed simulations are carried out on two-machine systems to illustrate the control features of these devices and their influence to increase power transfer capability and improve system reliability. The DPFC is derived from the unified power-flow controller (UPFC) and DPFC and Generalized Unified Power Flow Controller(GUPFC) has the same control capability as the UPFC. The DPFC can be considered as a UPFC with an eliminated common dc link. The active power exchange between the shunt and series converters, which is through the common dc link in the UPFC, is now through the transmission lines at the third-harmonic frequency. In this paper Generalized Unified Power Flow Controller(GUPFC) has been analysed for both open loop and close loop configuration. For this a Single Machine Infinite Bus (SMIB) system is simulated
Keywords: FACTS, DPFC, modeling, power transmission, AC-DC power conversion, semiconductor devices, power system control.
AGGRAVATE OF INTERFERANCE BETWEEN BLUETOOTH DEVICES
Ajit Singh Yadav, Achint Chugh
DOI: 10.17148/IJIREEICE.2015.3424
Abstract: In this paper we investigated that Bluetooth wireless transmission standard accommodate a low-power data link between electronic devices over relatively abruptly ranges. These connections also known as Pico-nets transmit using frequency hopping spread spectrum (FHSS) to send data over the air. In many of Bluetooth technology becomes used the number of Bluetooth devices will continue to extending daily life. With this increase in use there will be a decrease in performance that can be blame to Bluetooth “inter-Pico-net” interference. Very small has been published on the subject of interpico-net interference. Previous to studies have derived mean packet error rates for an increase in the number of Pico-nets present. To analysis that the mean rate many papers make up the assumption that the probability of a Bluetooth device hopping to a channel is random. However making this examine does not explain what happens in actual time. This research gives some awareness into what really happens when multiple Pico-nets are interfering in day to day time. Bluetooth devices actually use a frequency hopping explanation to analysis hopping sequence. This explanation has been implemented in software t o te st various acts of looking aspects of interpico-net interference. Previous explanation has shown that synchronizing the clocks among neighboring Pico-nets will result in an increase in performance. This analysis shows there are cases where synchronization individual will not provide adequate improvement. Experimental testing has been conducted to validate some of the simulated results. Adjacent channel interference was analysis during experimentation. This dispute former research, which has accepted that adjacent channel disturbance, is inconsequential.
Abstract: Multiplexing is a method by which multiple analog message signals or digital data streams are combined into one signal over a shared medium. The aim is to share an expensive resource. TDM is the most widely used multiplexing technique in today‟s communication, in which the main issue is a clock recovery that may render the system highly complicated and costly for TDM system. Therefore, many investigations have been done to design and develop reliable and cost-effective clock recovery modules for TDM in both electrical and optical versions. These problems can be resolved by an absolute polar duty cycle division multiplexing (APDCDM). APDCDM also decreases the complexity of receiver and improved the capacity of channels as compare to the DCDM system. In this workfive user APDCDM system has been designed and each user has data rate of 20Gbps, 100520  Gbps signal is transmitted through optical fiber cable and data is successfully transmitted up to 75 km distance using a standard single mode fiber.
Design Of Ku-Band Hexagonal Microstrip Patch Antenna With Linear And Circular Polarization
Kadiyam Suresh, Dr. P. Siddaiah
DOI: 10.17148/IJIREEICE.2015.3426
Abstract: This paper presents two antennas, one is linearly polarized dual frequency hexagonal microstrip patch antenna and other is wide band circularly polarized hexagonal microstrip patch antenna. The presented antennas are designed for Ku band applications. Dual frequency is obtained by introducing a rectangular shaped slot on the hexagonal patch. Both antennas are simulated using HFSS 14.0 and performance measures of an antenna such as return loss, voltage standing wave ratio (VSWR),axial ratio, peak gain and radiation pattern are measured.
Keywords: Hexagonal, slot, axial ratio, circular polarization, linear polarization.
Fuzzy Logic Control Based Standalone Wind Energy Conversion System For Dc Base Telecom Loads
G. Sankara Babu, Smt.V.Usha Reddy
DOI: 10.17148/IJIREEICE.2015.3427
Abstract: The main demand for renewable energy resources is increase in the price and limited availability of conventional energy resources. Available alternative sources of wind energy are neat and clean but due to the intermittent nature it can need back up. In order to ascertain continuous supply of potency felicitous storage technology is utilized as backup. In this paper, the sustainability of a 4-kW hybrid of wind and battery system is investigated for meeting the requisites of a 3-kW stand-alone dc load representing a base telecom station. A charge controller of battery bank charging and discharging depends on Fuzzy logic controller predicated maximum power point tracking and battery state of charge. The mechanical safety and electrical safety of wind energy conversion system is achieved by using pitch control technique. Both the control schemes are integrated and the efficacy is validated by testing it with various load and wind profiles in MATLAB/SIMULINK.
Keywords: Maximum Power Point Tracking (MPPT), Pitch Control, State Of Charge (SOC), Wind Energy Conversion System (WECS).
Attacks on Elliptic Curve Cryptography Discrete Logarithm Problem (EC-DLP)
Mrs.Santoshi Pote, Mrs. Jayashree Katti
DOI: 10.17148/IJIREEICE.2015.3428
Abstract: This paper provides an overview of elliptic curves and their use in cryptography. The purpose of this paper is an in-depth examination of the Elliptic Curve Discrete Logarithm (ECDLP) including techniques in attacking cryptosystems dependent on the ECDLP. The paper includes properties of elliptic curve and methods for various attacks.
Implementation of Low Power TPG using LFSR and single input changing generator (SICG) for BIST Application: A Review
Namratha M R, Jyothi Pramal, Praveen J, Raghavendra Rao A
DOI: 10.17148/IJIREEICE.2015.3429
Abstract: A novel test pattern generator which is more suitable for built in self test (BIST) structures used for testing of VLSI circuits. The objective of the BIST is to reduce power dissipation without affecting the fault coverage. A new low power test pattern generator using linear feedback shift register (LFSR), called LP-TPG, and is presented to reduce the average power and peak power of the circuit by reducing the switching activities during test. In this approach, the single input change patterns generated by a counter and a gray code generator are Exclusive–ORed with the seed generated by the low power linear feedback shift register [LP-LFSR]. The proposed scheme is evaluated by using, a synchronous pipelined 4x4 and 8x8 Braun array multipliers. The system-on chip (SoC) approach is adopted for implementation on Xilinx Field Programmable Gate Arrays (FPGAs). From the implementation results, it is verified that the testing power for the proposed method is reduced by a significant percentage.
Keywords: BIST, Test Pattern Generator, LFSR, FPGA.