Performance analysis of multiuser selection diversity with adaptive transmission

Lin Yang*, Mohamed-Slim Alouini

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper, we study the performance of multiuser selection diversity with adaptive transmission based on absolute signal-to-noise ratio (SNR)-based scheduling and normalized SNR-base scheduling. Our performance criteria include achievable system spectral efficiency as well as access probability, average access time, and average access rate of individual users. Closed-form expressions are obtained for these performance measures when the users are subject to independent but not necessarily identically distributed (non-iid) Rayleigh fading and when these users move at possibly different speeds. These results confirm that the system spectral efficiency for both scheduling schemes increases as the number of users in the system grows. These results also show that while the disparateness in the average channel conditions (i.e. short-term average SNR) among users is beneficial to the system spectral efficiency when the absolute SNR-based scheduling is used. On the other hand, the normalized SNR-based scheduling is not fair anymore due to the absolute minimum SNR restriction for reliable communication. For the non-iid case, the normalized SNR-based scheduling has some advantage over the i.i.d. case because of the disparateness in the average SNR among users when the number of users and average SNR for U.d. users are small. This advantage disappears as the number of users and/or average SNR for i.i.d. users increase.

Original languageEnglish (US)
Title of host publication2004 First International Symposium on Control, Communications and Signal Processing, ISCCSP 2004
Pages159-162
Number of pages4
StatePublished - Jul 12 2004
Event2004 First International Symposium on Control, Communications and Signal Processing, ISCCSP 2004 - Hammamet, Tunisia
Duration: Mar 21 2004Mar 24 2004

Publication series

NameInternational Symposium on Control, Communications and Signal Processing, ISCCSP

Other

Other2004 First International Symposium on Control, Communications and Signal Processing, ISCCSP 2004
CountryTunisia
CityHammamet
Period03/21/0403/24/04

ASJC Scopus subject areas

  • Engineering(all)

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