IOSR Journal of Engineering

Displaying 161-200 of 498 results

  • White Papers // Jan 2013

    Dijkstra Algorithm for Feeder Routing of Radial Distribution System

    This paper proposes the application of Dijkstra algorithm for feeder routing of radial distribution system. A complete network of available routes is considered and the optimization goal is to find the routes that provide the minimal total annual cost, which is obtained by the proposed algorithm. Distribution system planning mainly...

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Informative Knowledge Discovery Using Multiple Data Sources, Multiple Features and Multiple Data Mining Techniques

    Data mining is a process of obtaining trends or patterns in historical data. Such trends form business intelligence that in turn leads to taking well informed decisions. However, data mining with a single technique does not yield actionable knowledge. This is because enterprises have huge databases and heterogeneous in nature....

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Sequential Pattern Mining Using Apriori Algorithm & Frequent Pattern Tree Algorithm

    The concept of Sequential Pattern Mining was first introduced by Rakesh Agrawal and Ramakrishnan Srikant in the year 1995. Sequential Patterns are used to discover sequential sub-sequences among large amount of sequential data. In web usage mining, Sequential Patterns are exploited to find sequential navigation patterns that appear in users'...

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Cloud-Assisted Video Streaming Over QoS-Enabled Wireless Networks

    With the proliferation of inexpensive broadband connections, video streaming services over the Internet are growing rapidly. Delivering video over wireless networks is a challenging task, especially when high definition is required, due to its high bit rate, delay, and loss sensitivity. This paper presents a modified slicing scheme that can...

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Neural Networks for Iris Recognition: Comparisons between LVQ and Cascade Forward Back Propagation Neural Network Models, Architectures and Algorithm

    In this paper, Iris recognition is a proven, accurate means to identify people. In this paper, it includes the preprocessing system, segmentation, feature extraction and recognition of an iris recognition system was suggested based on two Artificial Neural Network (ANN) models separately: Cascade Forward (CFBPNN) and Linear Vector Quantization (LVQ)....

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Data Quality Tools for Data Warehousing: Enterprise Case Study

    Ensuring data quality for an enterprise data repository various data quality tools are used that focus on this issue. The scope of these tools is moving from specific applications to a more global perspective so as to ensure data quality at every level. A more organized framework is needed to...

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Entrepreneurial Idea Development to Business Start-Up: Teaching Methodological Approach

    The crucial issue on entrepreneurship training in the tertiary institutions of learning is teaching students how to develop innovative business idea to the business venture start-up stage. This is the ability of the students to develop ideas that are out of the theoretical teaching of the academic environment. Several scholars...

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  • White Papers // Jan 2013

    A New Approach to Volunteer Cloud Computing

    Volunteer cloud computing is based on the concept where highly distributed non-dedicated resources are harnessed to build a cloud so as to offer cloud services. As volunteer clouds are allowed to communicate with each other and with other commercial clouds also, it's necessary to implement an enhanced interoperable environment. The...

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Improving Security for Data Migration in Cloud Computing Using Randomized Encryption Technique

    With the increase in the development of cloud computing environment, the security has become the major concern that has been raised more consistently in order to move data and applications to the cloud as individuals do not trust the third party cloud computing providers with their private and most sensitive...

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Green Cloud Computing: A Constructive Advent to Curtail the Carbon Emission Radiation Due to Servers

    This paper analytically scrutinizes the energy dissipation based on services and invades the conditions to promote green cloud computing to save energy crisis. In conventional, cloud computing emphasis on the data computing efficiency whereas green cloud computing accredit to the research and practice of applying computing resources in virtuous, adequate...

    Provided By IOSR Journal of Engineering

  • White Papers // Jan 2013

    Implementing SAAS: Cloud Computing and Android Based Application Framework for C Programming

    Under The National Mission on Education through Information and Communication Technology (NMEICT) a lot of e-learning material, applications and other useful information have been made available on its web portal. MHRD has also taken initiatives for the dissemination of this knowledge by distributing Aakash Tablets to the students at free...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Investigation of Dual Meander Slot to Microstrip Patch Antenna

    A dual microstrip meander slot antenna is presented for Wireless Local Area Network (WLAN) application. The proposed antenna comprises a rectangular microstrip patch element embedded with two meander slots. The parametric study is performed to investigate the characteristic of microstrip patch antenna with double meandered slots compared to the same...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Implementation of ALU Using Asynchronous Design

    Power consumption has become one of the biggest challenges in design of high performance microprocessors. In this paper, the authors present a design technique using GALs (Globally-Asynchronous Locally-Synchronous) for implementing asynchronous ALUs, which aims to eliminate the global clock. Here ALUs are designed with delay insensitive dual rail four phase...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Multiple Symbol Differential Detection of MPSK Which Is Invariant to Frequency Offset Using Maximum-Likelihood Detection

    It is well-known that classical differential detection of MPSK signals, wherein the information is encoded as the first order phase difference, is a simple and robust form of communication in environments not subject to frequency variation. For channels that introduce into the carrier a random frequency shift, e.g., those associated...

    Provided By IOSR Journal of Engineering

  • 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...

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  • 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...

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  • 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...

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  • 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...

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  • 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...

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  • 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...

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  • 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 // Dec 2012

    Cloud Computing: Overview & Current Research Challenges

    Cloud computing is a set of IT services that are provided to a customer over a network on a leased basis and with the ability to scale up or down their service requirements. Usually Cloud Computing services are delivered by a third party provider who owns the infrastructure. Cloud Computing...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Review of Various Aspects of Radio Frequency IDentification (RFID) Technology

    Radio Frequency IDentification (RFID) is essentially a wireless method of identification of physically placed objects in a certain state space. It is the most emerging technology these days which is becoming the alternate for barcode. Hence this technology is receiving lot of attention comparatively over past few years. RFID technology...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Survey of Routing Protocols for Mobile Ad Hoc Networks

    In this paper, the authors represent a survey of various existing secure routing protocols for MANET's. A mobile ad hoc network is a self configuring mobile nodes network. Significant progress has been made for making mobile ad hoc network secure and dynamic. Its infrastructure less and absence of any centralized...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Maximizing the Lifetime of Query Based Wireless Sensor Networks Using Ftqc Algorithm

    Data sense and recovery in wireless sensor systems have a general request in areas such as defense and inspection monitoring, and command and control in battlefields. In query-based wireless sensor systems, a user would subject a question and expect a answer to be returned within the limit. While the use...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    BPSK Transmitter Design Using FPGA With DAC and Pulse Shaping Filter to Minimize Inter-Symbol Interference(ISI)

    In contrast to the sophisticated implementation of Binary Phase Shift Keying (BPSK) transmitter using Application Specific Integrated Circuit (ASIC), mixer, and Local Oscillator(LO) for carrier signal; Software Defined Radio (SDR) provides a high performance, efficient and re-configurable platform to integrate all these individual functions of BPSK transmitter. This paper presents...

    Provided By IOSR Journal of Engineering

  • White Papers // Feb 2013

    Distributed Localization in Wireless Ad-Hoc Networks

    Localization has newly received research interest due to the success of the emerging Wireless Sensor Network (WSN) technology. This interest is expected to grow further with the proliferation of wireless sensor network applications such as medicine, military, transport. In this context routing, protocols and technologies of communication on those wireless...

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  • White Papers // Feb 2013

    Energy Efficient Routing Protocols for Mobile Ad HocNetworks

    Ad hoc on demand distance vector routing protocol is specially designed for mobile ad hoc networks with reduced overhead using Expanding Ring Search technique. But energy consumption should also be considered in MANET due to battery constrain of the nodes. In this paper, the authors propose an energy efficient route...

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  • White Papers // Feb 2013

    Fingerprint Liveness Detection Using Wavelet

    Fingerprint verification is one of the most reliable personal identification methods. It plays a very important role in forensic and civilian applications. In this paper, the authors propose a simple and effective approach for fingerprint liveness detection based on the wavelet analysis of the finger tip surface texture. In present...

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  • White Papers // Mar 2013

    Nonlinear Companding Transform Algorithm for Peak -to-Average Power Ratio Reduction of OFDM Signal

    Orthogonal Frequency Division Multiplexing (OFDM) is digital multicarrier Modulation access system for high data rate transfer .But it has high PEAK To Average Power Ratio which increases complexity of A/D Converter and D/A Converters and lowers the efficiency of power amplifiers. In this paper Repeated Clipping and Filtering (RCF) distortion...

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  • White Papers // Mar 2013

    FPGA Implementation of MB-OFDM Using Biorthogonal Encoder

    UWB is a high data rate, short range technology .It transmits the information over a minimum bandwidth of 500 MHZ. Modern UWB systems use Modulation techniques such as OFDM (Orthogonal Frequency Division Multiplexing). The MB-OFDM proposal is selected for UWB system model. MultiBand OFDM (MB-OFDM) is a short-range wireless technology...

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  • White Papers // Mar 2013

    New Fault Injection Approach for Network on Chip

    Packet-based on-chip interconnection networks, or Network-on-Chips (NoCs) are progressively replacing global on-chip interconnections in Multi-processor System-on-Chips (MP-SoCs) thanks to better performances and lower power consumption. However, modern generations of MP-SoCs have an increasing sensitivity to faults due to the progressive shrinking technology. Consequently, in order to evaluate the fault sensitivity...

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  • White Papers // Mar 2013

    Study and Analysis of Fractal Linear Antenna Arrays

    A fractal is a recursively generated object having a fractional dimension. They have no characteristic size, and are constructed of many copies of themselves at different scales. In this paper, the authors primarily focus on design of fractal linear array antenna for even number of elements and comparison of fractal...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Cloud Computing: Overview & Current Research Challenges

    Cloud computing is a set of IT services that are provided to a customer over a network on a leased basis and with the ability to scale up or down their service requirements. Usually Cloud Computing services are delivered by a third party provider who owns the infrastructure. Cloud Computing...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Review of Various Aspects of Radio Frequency IDentification (RFID) Technology

    Radio Frequency IDentification (RFID) is essentially a wireless method of identification of physically placed objects in a certain state space. It is the most emerging technology these days which is becoming the alternate for barcode. Hence this technology is receiving lot of attention comparatively over past few years. RFID technology...

    Provided By IOSR Journal of Engineering

  • White Papers // Dec 2012

    Survey of Routing Protocols for Mobile Ad Hoc Networks

    In this paper, the authors represent a survey of various existing secure routing protocols for MANET's. A mobile ad hoc network is a self configuring mobile nodes network. Significant progress has been made for making mobile ad hoc network secure and dynamic. Its infrastructure less and absence of any centralized...

    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...

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  • 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 // Aug 2012

    A Novel Algorithm for Power Saving and Over Head Reduction in the Wireless Networks

    The majority of the nodes connected and operating as an today are Wireless networks, because of its own advantage. In the Adhoc networks nodes are not connected with any fixed infrastructure and are operated by battery power. Each node consumes a large amount of energy while transmission or reception of...

    Provided By IOSR Journal of Engineering

  • White Papers // Aug 2012

    Vlsi Design of Cache Compression in Microprocessor Using Pattern Matching Technique

    Microprocessors speeds have been increasing faster than speed of off-chip memory. When multi processors are used in the system design, more processors require more accesses to memory. Thus it raises a 'wall' between processor and memory. Accessing off-chip memory takes an order of magnitude more time than accessing an on-chip...

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  • White Papers // Aug 2012

    Performance Analysis of Channel Assignment Scheme in Wimax

    Along with information technology of flourishing, the popularization rate of wireless communication equipment is higher. However, WiMAX is the one of new broadband wireless technologies. The performance of mobile WiMAX system is highly dependent on channel assignment scheme because frequency spectrum is finite in wireless communication systems. There are two...

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  • White Papers // Aug 2012

    Design and Analysis of Quad-Band Rectangular Microstrip Patch Antenna

    This paper proposes the rectangular microstrip patch antenna suitable to operate in different frequency bands. The rectangular microstrip patch antenna is designed and simulated using IE3D simulation software. The result obtained shows that the designed antenna is suitable for operation in four different frequency bands with bandwidth of 6.90%, 2.33%,...

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  • White Papers // Aug 2012

    Qos Parameters Comparison for 802.11 B, A&G Standards

    The use of wired local area networks has become ever more common place, even in situations where only a few computers need to be connected together. Advantages like cost reduction, High robustness and easy system configuration making WLAN more popular. Three different PHY layers are available for the IEEE 802.11...

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  • White Papers // Jun 2012

    Oversampling Technique for Peak to Average Power Ratio Measurement of Discrete Time OFDM Signal

    When measured, the Peak to Average Power Ratio (PAPR) of the discrete Orthogonal Frequency Division Multiplexing (OFDM) signal comes out to be less as compared to its continuous counterpart. This happens due to non-consideration of some of the peaks while measuring PAPR of the discrete time OFDM signal. This paper...

    Provided By IOSR Journal of Engineering

  • White Papers // Jun 2012

    Hardware Implementation of Face Detection Using ADABOOST Algorithm

    One of the main challenges of computer vision is efficiently detecting and classifying objects in an image or video sequence. Several machine learning approaches have been applied to this problem, demonstrating significant improvements in detection accuracy and speed. However, most approaches have limited object detection to a single class of...

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  • White Papers // Jun 2012

    Low Power CMOS 1-Bit Full Adder Cell Based on Voltage Scaling

    Operating an Integrated circuit at the prescribed Voltage scaling (constant field scaling) is preferable for reliable circuit operation under temperature fluctuations. In this paper, the authors proposed to design 1 - bit full adder by "Changing the threshold voltage and W/L ratio" under temperature variation insensitive conditions. They measured power...

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  • White Papers // Jun 2012

    Secure Localization Technique for Wireless Sensor Networks

    A Wireless Sensor Network (WSN) consist of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, vibrations, pressure, motion, pollutants and etc to cooperatively pass their data through the network to a main location. The more modern networks are bi-directional and control the activity of...

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  • White Papers // Jun 2012

    Design and Implementation a System Communication of Optical Fiber by Using Interval Wavelength (532nm-820nm) of Diode Laser

    An optical communication system consists of a transmitter, which encodes a message into an optical signal, a channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal. One of the most important types of optical communication system is optical Fiber...

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  • White Papers // Jun 2012

    Performance of Free Space Optical Communication System With BPSK and QPSK Modulation

    Free Space Optics is the technology which implies the line-of-sight link for the transfer of data between two distant points. The beam of light is used to provide optical connection that can transmit and receive data. The performance of the modulation techniques-Binary Phase Shift Keying (BPSK) and Quadrature Phase Shift...

    Provided By IOSR Journal of Engineering

  • White Papers // Jun 2012

    Minimization of ICI Using OFDM Techniques

    Orthogonal Frequency Division Multiplexing (OFDM) is an emerging broadband multicarrier modulation technique developed into a popular scheme for wideband digital communication, whether wireless or wired used in applications such as Digital Television, audio broadcasting, wireless networking and broadband internet access. OFDM has a well known limitation that is very sensitive...

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  • White Papers // Jun 2012

    MIMO Communication System at a Glance

    The MIMO communication system has multiple antennas at both the transmitting and the receiving ends of the channel. Using multiple antennas introduces additional spatial channels on account of which the capacity of the channel increases hence the authors get increased spectral efficiency without additional bandwidth or transmit power. Because of...

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  • White Papers // Jun 2012

    The Suggested Correlation Formula Between (HPF) and (OPMUF) Parameters Over Middle East Region

    In this paper, a study of the behavior and correlation between High Possible Frequency (HPF) and Optimum Maximum Usable Frequency (OPMUF) parameters for the communication links distributed over Middle East Region were made. A mutual correlation equation between the two parameters has been suggested. The analytical test of the monthly...

    Provided By IOSR Journal of Engineering

  • White Papers // Jun 2012

    A Qos Based Mac Protocol for Wireless Multimedia Sensor Network

    Wireless Multimedia Sensor Networks (WMSNs) have emerged and shifted the focus from the typical scalar wireless sensor networks to networks with multimedia devices that are capable to retrieve video, audio, images, as well as scalar sensor data. WMSNs are able to deliver multimedia content due to the availability of inexpensive...

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  • White Papers // Jun 2012

    Design and Implementation of Fpga Based High Performance Instruction List (IL) Processor

    Programmable Logic Controller (PLC) is a device that allows an Electro-Mechanical engineer to automate his mechanical process in an efficient manner. PLC is a typical Microprocessor or Micro-Controller based system with its dedicated operating system to interpret the control specification, scan inputs and accordingly activate the final control elements. As...

    Provided By IOSR Journal of Engineering

  • White Papers // Jun 2012

    Comparative Study of High Performance Braun's Multiplier Using FPGAs

    Multiplication is one of the essential operations in Digital Signal Processing (DSP) applications like Fast Fourier Transform (FFT), Digital filters etc. With the advancements in technology, research is still going on to design a multiplier that consumes less power or has high speed or occupies less area or a combination...

    Provided By IOSR Journal of Engineering

  • White Papers // Jun 2012

    Developed Java Software for Switching Secured Short Message Service (SMS)

    In this paper, the authors implement a software based SMS switching system using GLOBACOM and MTN as network carriers. JAVA programming language with focus on socket programming will be used for the software development. The application client, which is the portion that runs on the mobile phone, uses Java macro...

    Provided By IOSR Journal of Engineering

  • White Papers // Jun 2012

    Analysis of Mobile Telecommunication Development and Operational Practices Vis-?-Vis 4G Wireless Technology

    4G is a brand name for the Fourth Generation of the cellular wireless standards. Over the years, Nigerian telecommunication firms have been in operation with predecessor generation standards (such as 2G and 3G). The design principle of each of these cellular wireless standards follow the same principle, where the information...

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  • White Papers // Jun 2012

    Wireless Data Logging and Supervisory Control of Process Using Lab View

    Wireless data acquisition, data logging and supervisory control are the basic building blocks of plant automation. In this paper plant consisting of multiple boilers where multiple process variables of the boilers need to be acquired from the field is considered and analyzed. The data of the process variables needs to...

    Provided By IOSR Journal of Engineering

  • White Papers // Jun 2012

    Design of a Control Logic in a Dynamic Reconfigurable System

    this paper, the authors propose an architecture for controlling Dynamic Reconfigurable systems. The processor instructions when compiled one by one produces very high delay overhead. If these instructions are converted into a combinational logic then the overhead can be reduced thereby making the system an efficient one. This paper presents...

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  • White Papers // Jun 2012

    VHDL Implementation of 8-Bit ALU

    In this paper VHDL implementation of 8-bit Arithmetic Logic Unit (ALU) is presented. The design was implemented using VHDL Xilinx Synthesis tool ISE 13.1 and targeted for Spartan device. ALU was designed to perform arithmetic operations such as addition and subtraction using 8-bit fast adder, logical operations such as AND,...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    Study of ICI Cancellation Techniques in OFDM

    OFDM (Orthogonal Frequency Division Multiplexing) is a well known technique in 4G Broadband wireless communication systems. OFDM has high spectral efficiency but it suffers from frequency offset problem due to the difference between transmitter and receiver local oscillator frequencies which causes loss of orthogonality between subcarriers leading to ICI. This...

    Provided By IOSR Journal of Engineering

  • White Papers // Oct 2012

    To Study the Characteristics of Low Base Station Antenna in Respect of Propagation Loss

    The environment between the transmitter and receiver in a wireless communication system has a significant effect on the performance and to maintain quality of service of the system. Propagation loss is an important element which must be kept within predefined range in order to get expected performance of the system....

    Provided By IOSR Journal of Engineering