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Performance analysis of wireless multihop diversity systems
Author(s) -
Michalopoulos Diomidis S.,
Tsiftsis Theodoros A.
Publication year - 2008
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.930
Subject(s) - rayleigh fading , relay , computer science , diversity gain , maximal ratio combining , fading , expression (computer science) , diversity combining , signal to noise ratio (imaging) , wireless , telecommunications , antenna diversity , diversity (politics) , outage probability , cooperative diversity , diversity scheme , algorithm , statistics , mathematics , channel (broadcasting) , power (physics) , physics , quantum mechanics , sociology , anthropology , programming language
We study the performance of multihop diversity systems with non‐regenerative relays over independent and non‐identical Rayleigh fading channels. The analysis is based on the evaluation of the instantaneous end‐to‐end signal‐to‐noise ratio (SNR), depending on the type of the relay and the diversity scheme used. A closed‐form expression is derived for the average end‐to‐end SNR, when fixed‐gain relays and a maximal ratio combiner are used; also, an analytical expression formula for the average symbol‐error rate (ASER) for the above case is presented. The results show that, as expected, multihop diversity systems outperform conventional telecommunication systems in terms of ASER when the same amount of energy is assumed to be consumed in both cases. Copyright © 2008 John Wiley & Sons, Ltd.