Gauhati University

Displaying 1-14 of 14 results

  • White Papers // Oct 2013

    A Study on Handwritten Signature

    Handwritten signature verification is a behavioral biometric. Every day, the authors may face signature verification problem directly or indirectly whether it is in a banking transaction or signing a credit card transaction or authenticating a legal document. In order to solve this problem, during the last few decades, research has...

    Provided By Gauhati University

  • White Papers // Feb 2013

    Maximum Common Subgraph and Median Graph Computation from Graph Representations of Web Documents Using Backtracking Search

    After constructing graph representations for a set of web documents, there are several techniques to determine the similarity between same-type objects. This is achieved by graph matching. The measure of similarity may be based on the size of the maximum common subgraph. In this paper, the authors are interested in...

    Provided By Gauhati University

  • White Papers // Aug 2012

    Bandwidth Extension of BJT Amplifier Using a Novel Cascade Topology

    In any amplifier design, it is always necessary to give utmost attention to its frequency response analysis. While applying frequency response for some application it is also important to extend the bandwidth of an amplifier. Increasing the bandwidth means increasing the upper 3 dB frequency and decreasing the lower 3...

    Provided By Gauhati University

  • White Papers // Jul 2012

    Channel Estimation Technique for STBC Coded MIMO System with Multiple ANN Blocks

    In this paper, a channel estimation technique based on Artificial Neural Networks (ANN) has been proposed as an alternative to pilot based channel estimation technique for Space-Time Block Coded Multiple-Input Multiple-Output (STBC- MIMO) systems over Rayleigh fading channels. ANNs, due to their high degree of adaptability, can be used for...

    Provided By Gauhati University

  • White Papers // Jul 2012

    An Entropy Based Video Watermarking Scheme

    The emerging interest in the field of digital watermarking is due to the increase in concern over copyright protection of digital information and prevention of unauthorized access, duplication and manipulation of digital data. In this paper, an entropy based blind video watermarking scheme is proposed using combined DCT-DWT transform. Two...

    Provided By Gauhati University

  • White Papers // Jun 2012

    Artificial Neural Network Aided Protein Structure Prediction

    Protein structure prediction plays a vital role in drug design and biotechnology. Understanding protein structures is necessary to determine the function of a protein and its interaction with DNA, RNA and Enzymes. Experimental techniques such as NMR spectroscopy and X-ray crystallography have been the main source of information about protein...

    Provided By Gauhati University

  • White Papers // Jun 2012

    Maximal Ratio Combining Using Self Organizing Map in Wireless Channels

    The work is related to the use of Self Organizing Map (SOM) which is a type of unsupervised Artificial Neural Network (ANN), as an aid to Maximal Ratio Combining (MRC) in order to improve Bit Error Rate (BER) values of demodulated signals in wireless channels that have both Gaussian and...

    Provided By Gauhati University

  • White Papers // May 2012

    ANN Based Equalization Using Coded Inputs in Nakagami-m Faded Channel

    Equalization is often used in wireless communication to mitigate the effects of Inter Symbol Interference (ISI). The Artificial Neural Network (ANN) has been a preferred tool for performing equalization to reduce ISI. This paper describes the use of ANN and coding to improve performance of an equalizer, designed to tackle...

    Provided By Gauhati University

  • White Papers // May 2012

    ANN Based STBC-MIMO Set-Up for Wireless Communication

    Space Time Block Code is a powerful tool for improving performance in wireless communication. Multiple Input Multiple Outputs (MIMO) are a promising application of multiple antennas at both transmitter and receiver to improve communication performance by achieving spatial diversity. MIMO, when used with appropriate STBC coding techniques and proper channel...

    Provided By Gauhati University

  • White Papers // May 2012

    TCM-Coded OFDM Assisted by ANN in Wireless Channels

    The objective of this paper is to use Artificial Neural Network (ANN) in conjunction with M-ary PSK Trellis Coded Modulation (TCM) based Orthogonal Frequency Division Multiplexing (OFDM) as a means of achieving higher throughput and performance improvement in multipath fading channel. Simulation results are presented, that shows the superiority of...

    Provided By Gauhati University

  • White Papers // May 2012

    Noise Cancellation in Stochastic Wireless Channels using Coding and Adaptive Filtering

    Wireless communication with fading as a major impairment along with other phenomena gives rise to noise in the channel. One of the major issues in wireless communication is to cancel out noise effects primarily when the propagation medium demonstrates stochastic behavior. Data transmission in noisy communication channel is controlled with...

    Provided By Gauhati University

  • White Papers // Jan 2012

    Multi Carrier Symbol Recovery in OFDM Using ANN in Wireless Channel

    Orthogonal Frequency Division Multiplexing (OFDM) is a special type of multicarrier technique where a single data stream is transmitted over a number of low rate sub carriers. OFDM has been adopted as the modulation method of choice for practically all the new wireless technologies being used and developed today. But...

    Provided By Gauhati University

  • White Papers // May 2011

    Convolutional Coding Using Booth Algorithm for Application in Wireless Communication

    Convolutional codes are preferred types of error control codes which can achieve low BERs at Signal to Noise Ratio (SNR) very close to Shannon limit. Here, a new method of convolutional encoding is proposed using the general Booth algorithm for multiplication. This algorithm follows a fast multiplication process and achieves...

    Provided By Gauhati University

  • White Papers // Sep 2008

    Mobile-Commerce: A New Paradigm for LIS Prospective

    The ICT has brought a revolution in the society. A mobile phone today has become one of the basic needs after bread-butter, water and air to every individual. With the ability to handle a wide variety of new services and applications, it has become the lifeline of all in the...

    Provided By Gauhati University

  • White Papers // May 2012

    TCM-Coded OFDM Assisted by ANN in Wireless Channels

    The objective of this paper is to use Artificial Neural Network (ANN) in conjunction with M-ary PSK Trellis Coded Modulation (TCM) based Orthogonal Frequency Division Multiplexing (OFDM) as a means of achieving higher throughput and performance improvement in multipath fading channel. Simulation results are presented, that shows the superiority of...

    Provided By Gauhati University

  • White Papers // May 2012

    ANN Based Equalization Using Coded Inputs in Nakagami-m Faded Channel

    Equalization is often used in wireless communication to mitigate the effects of Inter Symbol Interference (ISI). The Artificial Neural Network (ANN) has been a preferred tool for performing equalization to reduce ISI. This paper describes the use of ANN and coding to improve performance of an equalizer, designed to tackle...

    Provided By Gauhati University

  • White Papers // May 2012

    ANN Based STBC-MIMO Set-Up for Wireless Communication

    Space Time Block Code is a powerful tool for improving performance in wireless communication. Multiple Input Multiple Outputs (MIMO) are a promising application of multiple antennas at both transmitter and receiver to improve communication performance by achieving spatial diversity. MIMO, when used with appropriate STBC coding techniques and proper channel...

    Provided By Gauhati University

  • White Papers // May 2011

    Convolutional Coding Using Booth Algorithm for Application in Wireless Communication

    Convolutional codes are preferred types of error control codes which can achieve low BERs at Signal to Noise Ratio (SNR) very close to Shannon limit. Here, a new method of convolutional encoding is proposed using the general Booth algorithm for multiplication. This algorithm follows a fast multiplication process and achieves...

    Provided By Gauhati University

  • White Papers // Aug 2012

    Bandwidth Extension of BJT Amplifier Using a Novel Cascade Topology

    In any amplifier design, it is always necessary to give utmost attention to its frequency response analysis. While applying frequency response for some application it is also important to extend the bandwidth of an amplifier. Increasing the bandwidth means increasing the upper 3 dB frequency and decreasing the lower 3...

    Provided By Gauhati University

  • White Papers // Jul 2012

    Channel Estimation Technique for STBC Coded MIMO System with Multiple ANN Blocks

    In this paper, a channel estimation technique based on Artificial Neural Networks (ANN) has been proposed as an alternative to pilot based channel estimation technique for Space-Time Block Coded Multiple-Input Multiple-Output (STBC- MIMO) systems over Rayleigh fading channels. ANNs, due to their high degree of adaptability, can be used for...

    Provided By Gauhati University

  • White Papers // Jul 2012

    An Entropy Based Video Watermarking Scheme

    The emerging interest in the field of digital watermarking is due to the increase in concern over copyright protection of digital information and prevention of unauthorized access, duplication and manipulation of digital data. In this paper, an entropy based blind video watermarking scheme is proposed using combined DCT-DWT transform. Two...

    Provided By Gauhati University

  • White Papers // Jun 2012

    Artificial Neural Network Aided Protein Structure Prediction

    Protein structure prediction plays a vital role in drug design and biotechnology. Understanding protein structures is necessary to determine the function of a protein and its interaction with DNA, RNA and Enzymes. Experimental techniques such as NMR spectroscopy and X-ray crystallography have been the main source of information about protein...

    Provided By Gauhati University

  • White Papers // Jun 2012

    Maximal Ratio Combining Using Self Organizing Map in Wireless Channels

    The work is related to the use of Self Organizing Map (SOM) which is a type of unsupervised Artificial Neural Network (ANN), as an aid to Maximal Ratio Combining (MRC) in order to improve Bit Error Rate (BER) values of demodulated signals in wireless channels that have both Gaussian and...

    Provided By Gauhati University

  • White Papers // Feb 2013

    Maximum Common Subgraph and Median Graph Computation from Graph Representations of Web Documents Using Backtracking Search

    After constructing graph representations for a set of web documents, there are several techniques to determine the similarity between same-type objects. This is achieved by graph matching. The measure of similarity may be based on the size of the maximum common subgraph. In this paper, the authors are interested in...

    Provided By Gauhati University

  • White Papers // May 2012

    Noise Cancellation in Stochastic Wireless Channels using Coding and Adaptive Filtering

    Wireless communication with fading as a major impairment along with other phenomena gives rise to noise in the channel. One of the major issues in wireless communication is to cancel out noise effects primarily when the propagation medium demonstrates stochastic behavior. Data transmission in noisy communication channel is controlled with...

    Provided By Gauhati University

  • White Papers // Oct 2013

    A Study on Handwritten Signature

    Handwritten signature verification is a behavioral biometric. Every day, the authors may face signature verification problem directly or indirectly whether it is in a banking transaction or signing a credit card transaction or authenticating a legal document. In order to solve this problem, during the last few decades, research has...

    Provided By Gauhati University

  • White Papers // Sep 2008

    Mobile-Commerce: A New Paradigm for LIS Prospective

    The ICT has brought a revolution in the society. A mobile phone today has become one of the basic needs after bread-butter, water and air to every individual. With the ability to handle a wide variety of new services and applications, it has become the lifeline of all in the...

    Provided By Gauhati University

  • White Papers // Jan 2012

    Multi Carrier Symbol Recovery in OFDM Using ANN in Wireless Channel

    Orthogonal Frequency Division Multiplexing (OFDM) is a special type of multicarrier technique where a single data stream is transmitted over a number of low rate sub carriers. OFDM has been adopted as the modulation method of choice for practically all the new wireless technologies being used and developed today. But...

    Provided By Gauhati University