IOSR Journal of Engineering

Displaying 201-240 of 498 results

  • White Papers // Dec 2012

    Digital Pheromone Scheme in Wireless Sensor and Robot Networks

    In this paper, the authors design a bio-inspired patrolling algorithm based on digital pheromone. As events have different importance, they refer to them as having different priorities. In their patrolling schemes, robots efficiently handle as many high priority events as possible. Inspired by the pheromone-based communication among ants, they introduce...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    CEMR: Congestion Evasion Multicast Routing to Maximize Throughput for Mobile Ad Hoc Networks

    This paper is focused on a new solution for congestion evasion in ad hoc multicast routing that referred as Congestion Evasion Multicast Routing short CEMR. CEMR is aimed at Congestion Evasion in Multicast Mobile Ad hoc routing protocol. The current MAC level routing strategy is independent which can work with...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Virtual Wi-Fi for Single Hopping

    Single hopping is implemented by using software approach over IEEE802.11WLAN card using orthogonality concept and protocol. Most feature of single hopping is to achieve virtual Wi-Fi network. Design parameters of this approach are time delay and energy consumption .There are many scenarios where a wireless device connect to virtual Wi-Fi...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    A Mobile Robot Navigation System Using RFID Technology

    Skilled navigation in mobile robotics usually requires solving two problems pertaining to the knowledge of the position of the robot, and to a motion control strategy. When no prior knowledge of the environment is available, the problem becomes even more challenging, since the robot has to build a map of...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Cloud Deployment Model and Cost Analysis in Multicloud

    Cloud computing is a revolution in the way it offers computational capability. The information technology organizations do not need to oversize the infrastructure anymore, potentially reducing the cost of deploying a service. The two main objective of this paper is to study a cloud deployment model which involves user, broker,...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Gain Enhancement of Circular Microstrip Patch Antenna Using Dual-FSS Superstrate Layer for ISM Band

    In this paper, an effort is made to optimize the gain to show better performance analysis on the basis of design and simulation results by implementing FSS structured superstrate layer with circular microstrip patch antenna at operating frequency of 5.8 GHz for ISM Band applications. In this proposed antenna, co-axial...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Performance Improvement of OFDM Using Subcarrier Frequency Diversity

    Orthogonal Frequency-Division Multiplexing (OFDM) uses a large number of closely spaced orthogonal sub-carrier signals to carry data. The orthogonality allows for efficient modulator and demodulator implementation using the Fast Fourier Transforms (FFT) algorithm on the receiver side, and inverse FFT on the sender side. The primary advantage of OFDM over...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Design and Implementation Based on Amba4.0 of Apb Bridge

    ARM introduced the Advanced Microcontroller Bus Architecture (AMBA) 4.0 specifications which includes Advanced eXtensiable Interface (AXI) 4.0. AMBA bus protocol has become the de facto standard SoC bus. That means more and more existing IPs must be able to communicate with AMBA4.0 bus. Based on AMBA 4.0 bus, the authors...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Data Mining Approach Using Apriori Algorithm: The Review

    In computer science and data mining, Apriori is a classic algorithm for learning association rules. Apriori is designed to operate on databases containing transactions. As is common in association rule mining, given a set of itemsets, the algorithm attempts to find subsets which are common to at least a minimum...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Software Redefined Communication System

    Beginning with practical difficulties in teaching communication systems in class room, this paper describes a set of innovative experimental demonstrations developed using SDR. Communication engineering is one of the interesting, at the same time difficult subject to learn if the concept is not clear or well explained. Normal practice is...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Radix4 Configurable Booth Multiplier for Low Power and High Speed Applications

    Portable multimedia and Digital Signal Processing (DSP) systems, which typically require flexible processing ability, low power consumption, and short design cycle, have become increasingly popular over the past few years. Many multimedia and DSP applications are highly multiplication intensive so that the performance and power consumption of these systems are...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Design and Fabrication of 456 MHz Bandpass Filter

    Bandpass filter is a passive component which is able to select signals inside a specific bandwidth at a certain center frequency and reject signals in another frequency region, especially in frequency regions, which have the potential to interfere the information signals. A bandpass filter must be used in transmitter and...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    The Performance of Saturated Packet Queue System on Broadband PLC Network

    The latest development of Broadband Power Line Communication Network may offer a platform for synchrophasor-sensor network in power distribution networks to establish a smart grid. Random data traffic passing through the slave-station of synchrophasor-sensor network can be viewed as packet entering of a queue. Since the length of queue is...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    A Design of RF - Based Programmable Frequency Divider for IEEE 802.11a Wireless Access

    Frequency being a parameter of the electronic signal give the researchers, a wide scope to improve & standardize the electronics & telecommunication system in the most productive & efficient way. As the telecommunication system is flourishing, it uses frequency as one of the most important parameter for its development. In...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Design and Implementation of FPGA Based Low Power Digital FIR Filter

    Finite Impulse Response (FIR) filters are widely used in various DSP applications. The low-power or low-area techniques developed specifically for digital filters can be found in. Many applications in digital communication (channel equalization and frequency channelization), speech processing (adaptive noise cancelation), seismic signal processing (noise elimination), and several other areas...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Capital Market and the Development of the Small and Medium - Scale Enterprises in Nigeria

    This paper looked at the need to incorporate the Small and Medium Scale Enterprises (SMEs) into the capital market in Nigeria as a means of raising capital for their operations. The findings of the paper found that the growth in the transactions of the quoted companies has been fluctuating over...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Control of Binary Input Systems

    Now-a-days many systems are controlled by items of commutation, mainly in powers electronics and hydraulic. This Boolean input system has increased in the electric industry. Power supply includes such system and there is represented by power converter. The goal of this paper is to propose a methodology to design a...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Factors affect on Requirement Prioritization

    Software engineering research is yet in its early stages hence it needs evaluation. So, software engineers think about experimental research and try to adopt analytical approaches to validate results like in other sciences. It should be asserting that requirement engineering process is to use requirements prioritization. The use of requirements...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Tree-Based Parity Check for an Optimal Data Hiding Scheme

    Reducing distortion between the cover object and the stego object is an important issue for steganography. The tree-based parity check method is very efficient for hiding a message on image data due to its simplicity. Based on this approach, the authors propose a majority vote strategy that results in least...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Implementation of Embedded Web Server with Light weight TCP/IP on Mini 2440

    In this paper, the authors analyses the Light-weight TCP/IP stack and gives the detailed processing of every layer first, then selecting the hardware platform as Samsung Mini2440 and the software platform as RT-Thread, porting of LwIP is done based on them. Then a thin web server is designed and stored...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Abstract Syntax Tree Based Clone Detection for Java Projects

    A large amount of unavoidable money is spent on the maintenance of any existing software systems. Software maintenance cost is generally higher than the development cost therefore reducing maintenance cost is a necessary task of today's software industries. Software system includes similar bugs at different places which makes system inefficient...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    A Novel Technique in stegnanalysis using S-DES and Back propagation Algorithm

    In this paper, the authors propose a new algorithm by improving and combining S-DES and back propagation in neural networks to identify the stego image in mails. Back propogation is ideal for simple pattern recognition and mapping tasks. This new algorithm checks the mail inbox for JPEG files. As the...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Study of Webcrawler: Implementation of Efficient and Fast Crawler

    A focused crawler is a web crawler that attempts to download only web pages that are relevant to a pre-defined topic or set of topics. Focused crawling also assumes that some labeled examples of relevant and not relevant pages are available. The topic can be represent by a set of...

    Provided By IOSR Journal of Engineering

  • White Papers // Nov 2012

    Secure Outsourcing of Linear Optimization in Cloud Computing

    Cloud computing has become a reality which is capable of enabling general public and organizations to make use of huge computational resources without capital investment in pay per use fashion. This new paradigm allows customers who have no much computational resources to outsource their expensive computational workloads to cloud and...

    Provided By IOSR Journal of Engineering

  • White Papers // Nov 2012

    Design and Implementation of Mobile Learning using 3G Technology

    Mobile learning is new. It is currently difficult to define, conceptualize and discuss. It could perhaps be a wholly new and distinct educational format, needing to set its own standards and expectations. Mobile learning has becomes another very important complement to the traditional ways of learning after digital learning. The...

    Provided By IOSR Journal of Engineering

  • White Papers // Nov 2012

    MMSE-V-BLAST Optimal-Ordering In Different Channels

    The Bell Labs lAyered Space-Time (BLAST) algorithm is simple, and hence, a popular choice for a Multiple-Input-Multiple-Output (MIMO) receiver. Because of the difficulties that arise due to the optimal ordering in terms of BER, while considering real analytical evaluations, the one and only solution is by introducing OSIC schemes to...

    Provided By IOSR Journal of Engineering

  • White Papers // Nov 2012

    Data Clustering with Leaders and Subleaders Algorithm

    In this paper, an efficient hierarchical clustering algorithm, suitable for large data sets is proposed for effective clustering and prototype selection for pattern classification. It is another simple and efficient technique which uses incremental clustering principles to generate a hierarchical structure for finding the subgroups/subclusters within each cluster. As an...

    Provided By IOSR Journal of Engineering

  • White Papers // Nov 2012

    Survey of Related Technologies for Improved Spectrum Efficiency

    The most noted effect of rapid growth in wireless networks in recent years has been the issues of spectrum usage and management because of its importance in wireless communication as the medium of data transmission. Efficient utilization of spectrum has been the major concerns in spectrum management over recent years...

    Provided By IOSR Journal of Engineering

  • White Papers // Nov 2012

    Cloud Computing and ACPI: An Approach to Implement Better Energy Management Towards Green IT

    Cloud computing has proved to be a major breakthrough in terms of green computing. Cloud computing is one of the few technologies which offers the possibility of reducing energy consumption and carbon releases with almost negligible disturbance to business activities. The positives of this technology in terms of servicing and...

    Provided By IOSR Journal of Engineering

  • White Papers // Nov 2012

    A Study of Diverse Wireless Network

    Wireless network refers to any type of computer network that is not connected by cables of any kind. It is a method by which homes, telecommunications networks and enterprise installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. This paper...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    A Service-Oriented Architecture based Global Positioning System

    The Global Positioning System (GPS) is a space-based satellite navigation system that provides location and time information, anywhere on or near the Earth. The GPS provides critical capabilities to military, civil and commercial users around the world. This paper present a Service Oriented Architecture (SOA) based Global Positioning System (GPS)....

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Hardware/Software Co-Simulation of BPSK Modulator Using Xilinx System Generator

    In this paper, the authors present a theoretical background overview of the digital communication systems and the BPSK modulation. The BPSK modulation represents an important modulation technique in terms of signal power. The BPSK system is simulated using Mat lab/ Simulink environment and system generator, a tool from Xilinx used...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Vehicle Obstacles Avoidance Using Vehicle-To Infrastructure Communication

    VANET is a technology where vehicles are considered as mobile nodes to create a mobile network. In the existing model, vehicle obstructs the communication between other vehicles will not be considered as an obstacle. Due to existing model the impact on the LOS (Line Of Sight) obstruction, received signal power,...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Mobile Networking and Ad Hoc Routing Protocols Validation

    In this paper, the authors describe mobile network and efficient routing protocol for wireless ad hoc networks. They report on its implementation, on performance comparisons and on a formal validation result. Moreover, they discuss cellular system design, global system for mobile communication, formal protocol verification and operating over infrared or...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Heuristic Route Discovery for Shared Firewall Network

    In a connection-oriented system, shared firewall protection provides the identical stage of protection against on its own firewall failures as dedicated firewall protection, with potentially superior network exploitation. This paper lists the constraints of firewall placement strategies and proposes a heuristic routing algorithm for communal security provisioning. Simulations be conducted...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Performance Analysis of Data Mining Algorithms in Weka

    The retail industry collects vast amounts of data on sales, customer buying history, goods, and service with ease of use of modern computing technology. This paper elaborates the use of data mining technique to help retailers to identify customer profile for a retail store and behaviors, improve better customer satisfaction...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Multicast Routing Protocol With Group-Level Congestion Prediction and Permanence Under Constrained Energy Utilization for Mobile Ad Hoc Networks

    A MAC layer stage overloading detection system has been foreseeable. The planned model aims to share out associate degree energy competent mechanism to calculate the degree of congestion at victim node with maximal accuracy. This block detection tool is incorporated with a sequence cross-layered obstruction management routing topology. The projected...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Security in MANET Based on PKI Using Fuzzy Function

    In mobile adhoc network the design of security model is a very critical and essential topic, this is due to the rapidly changing nature of this type of networks. Many other factors should be in consideration while handling mobile adhoc networks like the lake of infrastructure, bandwidth, etc. a security...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Architecture and Evaluation on Cooperative Caching in Wireless P2P

    All researches shown that cooperative cache can improve the system performance in wireless P2P networks such as ad hoc networks and mesh networks. And all these studies have been done up to some level only. So for that purpose now the author using an protocol technique called Dynamic Source routing...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Virtual Class Room Using Six Sense Technology

    Sixth Sense is a revolutionary technology that can be used to access digital information in the world with wearable gestures. This paper focuses on various applications of six sense technology in educational purpose and how a virtual classroom, can be conducted anywhere, anytime with the help of six sense technology....

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Data Mining Approach Using Apriori Algorithm: The Review

    In computer science and data mining, Apriori is a classic algorithm for learning association rules. Apriori is designed to operate on databases containing transactions. As is common in association rule mining, given a set of itemsets, the algorithm attempts to find subsets which are common to at least a minimum...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Software Redefined Communication System

    Beginning with practical difficulties in teaching communication systems in class room, this paper describes a set of innovative experimental demonstrations developed using SDR. Communication engineering is one of the interesting, at the same time difficult subject to learn if the concept is not clear or well explained. Normal practice is...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Radix4 Configurable Booth Multiplier for Low Power and High Speed Applications

    Portable multimedia and Digital Signal Processing (DSP) systems, which typically require flexible processing ability, low power consumption, and short design cycle, have become increasingly popular over the past few years. Many multimedia and DSP applications are highly multiplication intensive so that the performance and power consumption of these systems are...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Design and Fabrication of 456 MHz Bandpass Filter

    Bandpass filter is a passive component which is able to select signals inside a specific bandwidth at a certain center frequency and reject signals in another frequency region, especially in frequency regions, which have the potential to interfere the information signals. A bandpass filter must be used in transmitter and...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    The Performance of Saturated Packet Queue System on Broadband PLC Network

    The latest development of Broadband Power Line Communication Network may offer a platform for synchrophasor-sensor network in power distribution networks to establish a smart grid. Random data traffic passing through the slave-station of synchrophasor-sensor network can be viewed as packet entering of a queue. Since the length of queue is...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    A Design of RF - Based Programmable Frequency Divider for IEEE 802.11a Wireless Access

    Frequency being a parameter of the electronic signal give the researchers, a wide scope to improve & standardize the electronics & telecommunication system in the most productive & efficient way. As the telecommunication system is flourishing, it uses frequency as one of the most important parameter for its development. In...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Design and Implementation of FPGA Based Low Power Digital FIR Filter

    Finite Impulse Response (FIR) filters are widely used in various DSP applications. The low-power or low-area techniques developed specifically for digital filters can be found in. Many applications in digital communication (channel equalization and frequency channelization), speech processing (adaptive noise cancelation), seismic signal processing (noise elimination), and several other areas...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Synthesis of Linear and Circular Array Antennas Using Gatool

    The main aim of this paper is to reduce the first four Side Lobe Levels (SLLs) of the linear and circular array antennas using gatool, which is the one of the simplest and efficient tool in MATLAB. This is employed in Radars and communications in order to reduce jamming effects,...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Design and Performance Analysis of Log Periodic Dipole Antenna at Uhf Band

    The paper described the design and performance analysis of log periodic dipole antenna at frequency 1800MHz -2500MHz (Ultra High Frequency Band), the antenna has been modeled using ADS layout and the S parameter was presented. A good impedance match in a wide frequency range has been achieved by a suitable...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    An Investigation Into the Performance Enhancement and Salient Features of AMR-WB Speech Codec Used in GSM Communication

    The 3rd Generation Partnership Project (3GPP) along with European Telecommunication Standard Institute (ETSI) recommended new speech coding scheme, called Adaptive Multi Rate (AMR) in 2000 and 2001. The proposed scheme has two variants: AMR-Narrowband (AMR-NB) and AMR-WB (AMR-WideBand). The speech quality of AMR-WB in GSM systems is remarkably high compared...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Adaptive Beam Forming Using KLMS, KRLS and CGM Algorithms

    In this paper adaptive beam forming using KLMS, CGM and KRLS algorithm has been proposed. In CGM algorithms has reduced the interference and convergence is better when number of antennas increased. In CGM algorithm the weight of antenna arrays can be adjusted to form certain amount of adaptive beam to...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Peak-To - Average Power Ratio Reduction of Ofdm Siganls

    Orthogonal Frequency Division Multiplexing (OFDM) is a form of multicarrier modulation technique with high spectral efficiency and immunity to interference. Despite of many advantages the main disadvantage of OFDM is that the time domain of OFDM signal which is a sum of subcarrier sinusoids leads to high Peak-to-Average Power Ratio...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Identification and Modeling of Dominant Causes of Congestion in a Cellular Network

    In telecommunications networks, congestion is the condition that arises when a system or a network experiences a level of offered calling activity or message traffic that exceed its capacity. In data networks, congestion occurs when the number of packets being transmitted through the network approaches the packet handling capacity of...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Efficient Implementation of Fast Fourier Transform Using NOC

    In this paper, improved algorithms for radix-8 FFT are presented. Various schemes have been proposed for computing FFT. It has Different target domains of applications and different tradeoffs between flexibility and performance. Typically, they need reconfigurable array of processing elements .The applications have been restricted to domains based on floating...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Efficient Security for Mobile Ad-Hoc Network

    An ad-hoc network is a dynamically changing network of mobile nodes that communicate without the support of a fixed network. Due to lack of centralized control, secured communication in mobile Ad-hoc network is important matter due to dynamic nature of the network topology. MANETs is affected by new security problems...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    An Ftp Implementation With Arm Processor and Gprs for Real Time Applications

    In this paper, the authors present the principles of a low-cost Internet-based data processing system. The main h e a r t of the system is an embedded hardware (ARM 9) running with a Linux OS. The embedded device communicates through General Packet Radio Service (GPRS) module, which makes it...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Adaptive Selective State-Transition Decoding: A Combined Approach for Trellis Coded Modulation Scheme

    The authors are presenting a new suboptimum decoding strategy, namely, Adaptive Selective State-Transition Decoding (ASSTD) for Trellis Coded Modulation schemes transmission over band-limited ISI channels. The ASSTD is a combined approach provides an improved error performance over Reduced State Sequence Estimation (RSSE) techniques which are in practical use. The ASSTD...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    A Printed Microstrip Antenna for RADAR Communication

    A single layer, single feed compact slotted patch antenna is thoroughly simulated in this paper. Resonant frequency has been reduced drastically by cutting two different slots. The first one is the combinations of two triangular and another rectangular slot at the upper right corner and rest is bilateral triangle at...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    A Literature Survey on Performance of Free Space Optical Communication Links Under Strong Turbulence

    Free space optical communication has widespread use because of its advantages such as high modulation bandwidth, enhanced security and low power. In free space optical communication, laser beam signals are transmitted through air. Due to atmospheric turbulence, signals are affected. This atmospheric turbulence leads to fading of the channel. The...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Comparison and Analysis of PAPR Reduction Techniques in OFDM

    In this paper, different techniques for reducing Peak To Average Power Ratio (PAPR) is discussed. The performance of an Orthogonal Frequency Division Multiplexing (OFDM) system is degraded if the Peak-to-Average Power Ratio(PAPR) is high. An OFDM system dynamic range is typically two or four times larger than a single carrier...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Image Inpainting Realization of GUI in JAVA Using Exemplar Method

    Image In-painting technique is of filling in holes in an image to preserve its overall continuity. There are many applications of this technique include the restoration of old photographs and damaged film; removal of labeled text like dates, subtitles, or publicity; and the removal of entire objects from the image...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Compact UWB Antenna With T-Shaped Slots and Staircase Ground Plane for Enhanced Bandwidth

    In the coming years, there is great demand for high-speed data transmissions on cost effective basis. In order to achieve the same a new technology known as the Ultra WideBand (UWB) has been used. This technology has revolutionary advantages of an unlicensed service that can be used anywhere, anytime, by...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Throughput Improvement for Cell Edge Users

    Users at the cell edge in a cellular network suffer from low data rate due to low SINR Cooperative transmission schemes which are used in wireless networks to improve the spectral efficiency. In this paper, the authors study the downlink capacity of edge users in a cellular network and see...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Microstrip Antenna for WLAN Application Using Probe Feed

    Microstrip patch antennas have been widely used in a various useful applications, due to their low weight and low profile, conformability, easy and cheap realization. A low profile patch antenna for WLAN application is proposed in this paper. This proposed antenna is made by using the probe feeding and aperture...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Mm Waves Role in Satellite Communication

    The frequency band of Millimeter Wave (MM Wave) in Electromagnetic spectrum is 30-300 GHz and is sometimes called the Extremely High Frequency (EHF) range. Apart from Radar system, communication system is another important application of MM Waves which proved better than Microwaves/optics in certain features. Certain characteristics of the earth's...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    An Efficient Hand-Geometry System for Biometric Identifications

    In this paper, the authors propose an efficient hand geometry based system to recognize individuals. Hand geometry used in this verification system utilizes some hand geometry features which cannot vary with small variation of palm position. In this work, users can place their hands freely without the need for pegs...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Embedded Ethernet Interface Using Arm Processor

    Currently device with microcontroller has been widely used in industrial field. However, a large number of devices don't have the network interface and the data from them cannot be transmitted in network. A design of ARM processor-based embedded Ethernet interface is presented. In the design, an existing SPI serial device...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    A Novel Compact CPW- Fed Antenna for ULTRA WIDEBAND Applications

    RECENTLY, with the rapid development of wireless communication systems for local access networks including Personal Digital Assistants (PDA), portable PCs, and Bluetooth, the need for low profile and compact antenna has been on the rise. The demand was increased day by day in wireless communication, especially for the ULTRA WIDEBAND...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Reconfigurable Microstrip Patch Antenna Using MEMS Technology

    This paper proposes the design of a Reconfigurable Micro Strip Patch Antenna Using MEMS Technology A Reconfigurable Microstrip patch antenna of operating frequency in the range of 5-8 GHz (CBand), for the application of wireless communication has been designed. The term Re-configurability refers that it adaptively changes its characteristics. A...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    DFT Based MMSE Equaliser in MIMO-OFDM

    MIMO-OFDM is considered as a fast growing technology now days. OFDM is a multi carrier modulation technique in which the carriers are Orthogonal to each others as a result of which it provides high bandwidth efficiency and multiple carriers share the data among themselves. During the research equalizer is always...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2012

    Low Power H.264 Video Compression Achitecture for Mobile Communication

    This paper presents a method to reduce the computation and memory access for variable block size Motion Estimation (ME) using pixel truncation. Previous work has focused on implementing pixel truncation using a fixed-block size(16?16 pixels) ME. However, pixel truncation fails to give satisfactory results for smaller block partitions. In this...

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    DCE Cradle: Simulate Network Protocols With Real Stacks for Better Realism

    Reusing real protocol implementations of the kernel network stack in network simulators can increase the realism of network experimentations as well as decrease the cost of protocol development. In this paper, the authors introduce DCE Cradle, a novel framework that allows to use any features of Linux kernel network stack...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Electromagnetic Band Gap Coupled Microstrip Antenna for UWB Applications

    In this paper Electromagnetic Band Gap structure with microstrip antenna has been proposed. Many small and compact periodic EBGs have been investigated to design the antenna. Simulation is done on the HFSS software tool. The antenna is designed on the 21x31mm FR4 substrate with the dielectric constant of 4.4. The...

    Provided By IOSR Journal of Engineering

  • White Papers // Aug 2012

    SERA Noise Estimation for Speech Enhancement

    A practical single channel speech enhancement system consists of two major components, estimation of noise power spectrum and the estimation of speech. Therefore, a crucial component of any algorithm is the estimation of the noise power spectrum for highly non stationary noise environments. The performance of noise estimation algorithm is...

    Provided By IOSR Journal of Engineering

  • White Papers // Aug 2012

    A Bandwidth Assignment Technique (Optimizing Technique) for Reliable Microwave Backhaul

    The design of wireless networks differs fundamentally from wired network design. First, the radio frequency spectrum is a limited natural resource which has been regulated worldwide to promote its efficient use. Second, the radio channel is a random and difficult communication medium. Actually, environment conditions can introduce instantaneously variations into...

    Provided By IOSR Journal of Engineering

  • White Papers // Aug 2012

    Optimization of Energy Consumption by Fuzzy Based Routing in Wireless Sensor Network

    Maintaining the energy of sensors in Wireless Sensor Network (WSN) is important in critical applications. WSN consists of sensor nodes which sense the physical parameters such as temperature, humidity, pressure and light etc and send them to a fusion center namely Base Station (BS) from where one can get the...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Fingerprint Verification Using Gabor Filter Bank

    Biometrics deals with identification of individuals based on their biological or behavioral characteristics. The use of fingerprints, for identification has been employed in law enforcement for about a century. An application of fingerprint is for personal authentication, for instance to access a computer, A bank-machine, cars or home. There are...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Pen Drive to Pen Drive and Mobile Data Transfer Using ARM

    Generally, the authors used to transfer data between two pen drives by using laptops or desktops. But it is not always possible to carry such a large size device to the particular location. So to overcome this problem, they are designing a hardware which is more compact to carry anywhere....

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Sigfree: Buffer Overflow Attack Detection

    Sigfree act as a Defender or protective shield for the today's Information world from insider or outsider attacker. Any activity aimed at disrupting a service or making a resource unavailable or gaining unauthorized access can be termed as an intrusion. Buffer Overflow attack is an attack which gives rise to...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Design & Simulation of Circular Microstrip Antenna With Defected Ground Structure (DGS) for WLAN Applications

    In this paper, a circular microstrip patch antenna with Defected Ground Structure (DGS) has been analyzed and simulated for the WLAN applications. The proposed antennas have been simulated at 2.45 GHz frequency using co-axial feeding technique. Actually, the authors design two circular microstrip antennas i.e. conventional CMSA and CMSA with...

    Provided By IOSR Journal of Engineering