TY - JOUR
T1 - Multiuser Diversity with Adaptive Modulation in Non-Identically Distributed Nakagami Fading Environments
AU - Rao, Anlei
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2012/1/25
Y1 - 2012/1/25
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/coded 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/coded 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/10754/242031
UR - http://ieeexplore.ieee.org/document/6140591/
UR - http://www.scopus.com/inward/record.url?scp=84858984614&partnerID=8YFLogxK
U2 - 10.1109/TVT.2012.2185965
DO - 10.1109/TVT.2012.2185965
M3 - Article
SN - 0018-9545
VL - 61
SP - 1439
EP - 1444
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 3
ER -