Joanne Gomes

Learn More
This paper analyses the performance of Hermite orthogonal pulses with Time-Hopping modulation techniques such as TH-PPM TH-BPSK and TH-PSM for Ultra wideband (UWB) communication using UWB S-V Channel-I. It compares the Bit Error Rate (BER) results of modulation techniques obtained with Gaussian pulse, with that of Hermite pulses and proves that Hermite(More)
This paper introduces a novel binary, long double error correcting, systematic code (8 2 5) that can detect and correct errors up to two bits in the received vector using simple concept of syndrome decoding. The motivation behind the construction of this code is the idea to achieve 100% error correction on the receiver side and to use the encoder/decoder(More)
This paper is concerned with error performance analysis of multidimensional orthogonal modulation technique using Hermite pulses over UWB S-V channel model. Multidimensional modulation technique uses N number of orthogonal shapes to transmit N information bits simultaneously in one bit interval. This improves the data transmission rate and hence is useful(More)
In multiuser environments, multi access interference (MAI) is occurred in UWB System.To overcome above problems Multiuser Detection Schemes (MUD) are used in wireless UWB System. Channel coding is another technique to reduce the multiuser access interference (MAI). One such code is LPDC codes for robust image transmission. Proposed system employs channel(More)
Use of Ultra-wideband (UWB) for wireless communication in home networking requires cost effective technical solutions with high quality. This paper investigates the performance of simple receiver with zero forcing equalizer in place of rake receiver for hermite based UWB communication. The UWB system with simple receiver is simulated for the application of(More)
The paper presents Ultra-Wideband system model as a point to point wireless-USB link in the home network for high speed transmission of gray scale video. Objective of High speed video data transmission is achieved by using multidimensional Hermite pulse shape modulation (2d–5d) at the transmitter. The proposed UWB system is cost effective as it uses(More)
This paper introduces a hybrid modulation scheme called N-dimensional Pulse Shape and Position Modulation (N-PSPM), using hermite pulses for Time-Hopped Ultra-Wide-Band communication in indoor home network. The proposed PSPM scheme provides the cost effective and power efficient solution for high speed UWB system and needs less number of orthogonal pulses(More)
Recently digital forensics has become a prominent activity in crime investigation since computers are increasingly used as tools to commit crimes. During forensic investigation the digital devices such as desktops, notebooks, smart phones etc. found at the crime scene are collected for further investigation. Investigators have to go through humongous amount(More)
Using Ultra wideband technique for short distance wireless communication in home networking requires cost effective technical solutions with high quality. The objective of this paper is to provide a low cost, short distance (< 10m), point to point, high speed wireless link using a single user UWB system with 2-dimensional hermite based pulse shape(More)
The paper presents a novel, simple, long and systematic binary code (13 3 7) to correct triple errors. This code is novel in a sense that it performs 100% data correction and gives BER performance close to Shannon limit to achieve energy efficient communication in wireless networks. By 100% data correction we mean that when three data bits are transmitted(More)