Jigisha N. Patel

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In this paper, the Bit Error Rate (BER) performance of Fast Fourier Transform-based Orthogonal Frequency Division Multiplexing system (FFT-Based OFDM) is compared with Discrete Cosine Transform-based Orthogonal Frequency Division Multiplexing system (DCT-Based OFDM) using Binary Phase Shift Keying (BPSK) as a modulation technique over Additive White(More)
Fast databases are a necessity in today’s Ecommerce environment. Information from the database has to be provided at fast rates to impatient customers, otherwise they will move on to competitors with more attentive services. Corporations needing up-to-date internal information cannot wait for long running queries that process numbers and produce detailed(More)
Low Density Parity Check (LDPC) codes have excellent error correcting performance. LDPC codes are one of the block coding techniques and it performs near Shannon limit and recommended for many practical applications. Non-binary LDPC codes extension of binary LDPC in error correcting property especially for short and moderate block length. In many digital(More)
Compressed bit streams are, in general, very sensitive to erroneous channel. Compressed image or video transport over error prone wireless channels may results in loss or erroneous decoding and due to that bit stream may cause severe degradation on picture quality. Various error control coding techniques like, error resilience, forward error control coding(More)
The existing mobile communication systems operate in selected environments only; it would be desirable to have a new universal system, which could operate anywhere, anytime using unified equipment. Also, taking into account the limitations imposed by the finite amount of radio spectrum available, the focus of third generation (3G) mobile systems is to(More)
In wireless sensor network (WSN), many novel architectures, protocols, algorithms and applications have been proposed and implemented for energy efficiency. The efficiency of these networks is highly dependent on routing protocols which directly affecting the network life-time. Cluster formation in sensor network is one of the most popular technique for(More)
Abstract In last decade the transmission of image over wireless network has become challenging. Compressed bit stream of image/video need less storage and bandwidth but highly sensitive to propagation of errors. So error control is an important technique in image/video transmission. This paper proposed multilayered bit stream of JPEG coded image(More)
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