Amplify-and-Forward Cooperative Diversity for Green UWB-Based WBSNsReport as inadecuate




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The Scientific World JournalVolume 2013 2013, Article ID 785840, 6 pages

Research Article

Electronics and Communications Engineering, Arab Academy for Science, Technology and Maritime Transport AASTMT, Alexandria 1029, Egypt

Computer Engineering, Arab Academy for Science, Technology and Maritime Transport AASTMT, Alexandria 1029, Egypt

Received 7 July 2013; Accepted 1 October 2013

Academic Editors: R. J. Ferrari, M. Nappi, N. Nishchal, and P. Siohan

Copyright © 2013 Heba Shaban and Mohamad Abou El-Nasr. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper proposes a novel green cooperative diversity technique based on suboptimal template-based ultra-wideband UWB wireless body sensor networks WBSNs using amplify-and-forward AF relays. In addition, it analyzes the bit-error-rate BER performance of the proposed nodes. The analysis is based on the moment-generating function MGF of the total signal-to-noise ratio SNR at the destination. It also provides an approximate value for the total SNR. The analysis studies the performance of equally correlated binary pulse position modulation EC-BPPM assuming the sinusoidal and square suboptimal template pulses. Numerical results are provided for the performance evaluation of optimal and suboptimal template-based nodes with and without relay cooperation. Results show that one relay node provides ~23 dB performance enhancement at BER, which mitigates the effect of the nondesirable non-line-of-sight NLOS links in WBSNs.





Author: Heba Shaban and Mohamad Abou El-Nasr

Source: https://www.hindawi.com/



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