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Báo cáo hóa học: " Research Article Performance of Selection Combining Diversity in Weibull Fading with Cochannel Interference"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Performance of Selection Combining Diversity in Weibull Fading with Cochannel Interference | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007 Article ID 60408 6 pages doi 10.1155 2007 60408 Research Article Performance of Selection Combining Diversity in Weibull Fading with Cochannel Interference Mahmoud H. Ismail and Mustafa M. Matalgah Center for Wireless Communications Department of Electrical Engineering University of Mississippi Oxford MS 38677-1848 USA Received 11 April 2006 Revised 24 November 2006 Accepted 17 January 2007 Recommended by Visa Koivunen We evaluate the performance of selection combining SC diversity in cellular systems where binary phase-shift keying BPSK is employed and the desired signal as well as the cochannel interferers CCIs is subject to Weibull fading. A characteristic function- CF- based approach is followed to evaluate the performance in terms of the outage probability. Two selection criteria are adopted at the diversity receiver maximum desired signal power and maximum output signal-to-interference ratio SIR . We study the effect of the fading parameters of the desired and interfering signals the number of diversity branches as well as the number of interferers on the performance. Numerical results are presented and the validity of our expressions is verified via Monte Carlo simulations. Copyright 2007 M. H. Ismail and M. M. Matalgah. 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. 1. INTRODUCTION Selection combining SC diversity is one of the simplest available schemes used to combat the detrimental effect of fading. It has been very well studied in the literature over different models of fading channels see 1 Section 9.8 and the references therein . Also the performance of such diversity scheme in presence of cochannel interference CCI has been investigated under a variety of assumptions in the literature. For