Performance Analysis of M-QAM Scheme Combined With Multiuser Diversity Over Nakagami- [Formula Omitted] Fading Channels

In this paper, we consider an M-ary quadrature amplitude modulation (M-QAM) scheme combined with multiuser diversity over Nakagami- m fading channels. Assuming that delayed but error-free signal-to-noise ratio (SNR) feedback is available, we derive closed-form formulas for the average transmission r...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2008-09, Vol.57 (5), p.3251
Main Authors: Yoora Kim, Yoora Kim, Gang Uk Hwang, Gang Uk Hwang
Format: Article
Language:English
Subjects:
Channels
Delay
Exact solutions
Fading
Feedback
Mathematical analysis
Mathematical models
Quadrature amplitude modulation
Online Access:Get full text
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Summary:In this paper, we consider an M-ary quadrature amplitude modulation (M-QAM) scheme combined with multiuser diversity over Nakagami- m fading channels. Assuming that delayed but error-free signal-to-noise ratio (SNR) feedback is available, we derive closed-form formulas for the average transmission rate and the average bit error rate (BER), which are also shown to be generalizations of many previous results. Through numerical studies and simulations, we check the validity of our analysis. In addition, we investigate the impact of the Nakagami fading parameter m and feedback delay on system performance.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2008.917251