Distributed spatial multiplexing for uplink multiuser systems

Youngwook Ko, Cihan Tepedelenlioglu

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

2 Scopus citations

Abstract

Assuming a base station with multiple antennas, we propose two channel-assigning strategies based on spatial multiplexing with threshold-based user selection at the uplink. Allowing multiple chosen users to access the channel, we obtain additional multiplexing gain and a reduced feedback complexity, compared to the conventional greedy approach. We prove that the proposed system outperforms the greedy approach also with respect to the degree of fairness among users, measured by the variance of the time averaged throughput. For practical uplink multiuser systems, we show that the standard greedy scheme may not be the optimal policy in terms of the minimization of average BER. The numerical results corroborate our findings.

Original languageEnglish (US)
Title of host publicationIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
DOIs
StatePublished - Dec 1 2006
EventIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference - San Francisco, CA, United States
Duration: Nov 27 2006Dec 1 2006

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

OtherIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
CountryUnited States
CitySan Francisco, CA
Period11/27/0612/1/06

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Ko, Y., & Tepedelenlioglu, C. (2006). Distributed spatial multiplexing for uplink multiuser systems. In IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference [4151545] (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2006.915