Adaptive Modulation with Best User Selection over Non-Identical Nakagami Fading Channels

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

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.
Original languageEnglish (US)
Title of host publication2011 8th International Symposium on Wireless Communication Systems
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages609-613
Number of pages5
ISBN (Print)9781612844022
DOIs
StatePublished - Jan 27 2012

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