TY - GEN
T1 - Adaptive Modulation with Best User Selection over Non-Identical Nakagami Fading Channels
AU - Rao, Anlei
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2012/1/27
Y1 - 2012/1/27
N2 - In this paper, we analyze the performance of adaptive modulation with single-cell multiuser scheduling over independent but not identical distributed (i.n.i.d.) Nakagami fading channels. Closed-form expressions are derived for the average channel capacity, spectral efficiency, and bit-error-rate (BER) for both constant-power variable-rate and variable-power variable-rate uncoded M-ary quadrature amplitude modulation (M-QAM) schemes. We also study the impact of time delay on the average BER of adaptive M-QAM. Selected numerical results show that the multiuser diversity brings a considerably better performance even over i.n.i.d. fading environments.
AB - In this paper, we analyze the performance of adaptive modulation with single-cell multiuser scheduling over independent but not identical distributed (i.n.i.d.) Nakagami fading channels. Closed-form expressions are derived for the average channel capacity, spectral efficiency, and bit-error-rate (BER) for both constant-power variable-rate and variable-power variable-rate uncoded M-ary quadrature amplitude modulation (M-QAM) schemes. We also study the impact of time delay on the average BER of adaptive M-QAM. Selected numerical results show that the multiuser diversity brings a considerably better performance even over i.n.i.d. fading environments.
UR - http://hdl.handle.net/10754/242034
UR - http://ieeexplore.ieee.org/document/6125427/
UR - http://www.scopus.com/inward/record.url?scp=84857487832&partnerID=8YFLogxK
U2 - 10.1109/ISWCS.2011.6125427
DO - 10.1109/ISWCS.2011.6125427
M3 - Conference contribution
SN - 9781612844022
SP - 609
EP - 613
BT - 2011 8th International Symposium on Wireless Communication Systems
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -