Open Access

Analysis of Coded FHSS Systems with Multiple Access Interference over Generalized Fading Channels

EURASIP Journal on Wireless Communications and Networking20082008:346730

https://doi.org/10.1155/2008/346730

Received: 14 April 2008

Accepted: 11 August 2008

Published: 18 December 2008

Abstract

We study the effect of interference on the performance of coded FHSS systems. This is achieved by modeling the physical channel in these systems as a block fading channel. In the derivation of the bit error probability over Nakagami fading channels, we use the exact statistics of the multiple access interference (MAI) in FHSS systems. Due to the mathematically intractable expression of the Rician distribution, we use the Gaussian approximation to derive the error probability of coded FHSS over Rician fading channel. The effect of pilot-aided channel estimation is studied for Rician fading channels using the Gaussian approximation. From this, the optimal hopping rate in coded FHSS is approximated. Results show that the performance loss due to interference increases as the hopping rate decreases.

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Authors’ Affiliations

(1)
Department of Electrical Engineering, King Fahd University of Petroleum and Minerals (KFUPM)

Copyright

© Salam A. Zummo. 2008

This article is published under license to BioMed Central Ltd. 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.