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06-09-2016 | Issue 3/2017

Wireless Personal Communications 3/2017

Performance Improvement of Digital Image Transmission over Mobile WiMAX Networks

Journal:
Wireless Personal Communications > Issue 3/2017
Authors:
H. Kasban, Mohsen A. M. Mohamed Kaseem El-Bendary

Abstract

This paper studies the performance of image transmission over WiMAX networks under different fading channels. The objective is determining the optimum technique in every transmission stage that can be used for obtaining the optimum performance of the image transmission process. The results are evaluated in terms of Bit Error Rate, and Peak Signal to Noise Ratio for various values of Signal to Noise Ratio. The first stage is the image segmentation, where the transmitted image is segmented into packets; the tested packet lengths are 1, 2, 4, 8, 16 Kbits. The second stage is the encoding, where the Convolutional Code, Low Density Parity Check, and Turbo codes with different code rates are tested. The third stage is the interleaving, where the block, chaotic interleaver algorithms are tested. The fourth stage is modulation; where Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying and Quadrature Amplitude Modulation with different lengths are tested. The results show that, the performance of image transmission over the mobile WiMAX can be improved by applying the optimum technique in each transmission stage. Increasing the packet length, using the Turbo code with 1/2 code rate, chaotic interleaver and BPSK modulation achieves the optimum performance.

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