New Results for Wireless Multihop Diversity Systems
Konferenz: European Wireless 2006 - 12th European Wireless Conference 2006 - Enabling Technologies for Wireless Multimedia Communications
02.04.2006 - 05.04.2006 in Athens, Greece
Tagungsband: European Wireless 2006
Seiten: 7Sprache: EnglischTyp: PDFPersönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Michalopoulos, Diomidis S.; Karagiannidis, George K. (Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki, GR-54124, Grecce)
Tsiftsis, Theodoros A. (Department of Electrical & Computer Engineering, University of Patras, GR-26500, Greece)
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 (MRC) are used, whereas an analytical expression formula for the average symbol-error rate, is presented. The results show that 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.