DocumentCode :
1049988
Title :
Performance Analysis of M-QAM Scheme Combined With Multiuser Diversity Over Nakagami- 
Fading Channels
Author :
Kim, Yoora ; Gang Uk Hwang
Author_Institution :
Dept. of Math. Sci. & Telecommun. Eng. Program, Korea Adv. Inst. of Sci. & Technol., Daejeon
Volume :
57
Issue :
5
fYear :
2008
Firstpage :
3251
Lastpage :
3257
Abstract :
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.
Keywords :
Nakagami channels; diversity reception; error statistics; multiuser channels; quadrature amplitude modulation; M-QAM scheme; M-ary quadrature amplitude modulation; Nakagami-m fading channels; bit error rate; error-free signal-to-noise ratio feedback; feedback delay; multiuser diversity; performance analysis; Average bit error rate (BER); M-QAM; M-ary quadrature amplitude modulation (M-QAM); Multiuser diversity; Nakagami-$m$
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/TVT.2008.917251
Filename :
4441944
Link To Document :
