Sum Capacity of Opportunistic Scheduling for Multiuser MIMO Systems with Linear Receivers

Raymond H Y Louie, Matthew R. McKay, Iain B. Collings

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

1 Citation (Scopus)

Abstract

We analyze the sum capacity achieved by linear receivers in a multiple-input multiple-output broadcast channel. We consider a simple and practical opportunistic scheduling algorithm, based on the signal to interference noise ratio (SINR) feedback from each user. Each transmit antenna sends data to a particular user, selected based on SINR. Under this scheduling scheme, we derive new accurate approximations for the sum capacity, for the cases of maximum ratio combining, zero forcing, and minimum mean-squared error receivers. We also derive capacity scaling laws, which reveal that the capacity of all three linear receivers converge to the same value for a large number of users. Our results are confirmed through comparison with Monte Carlo simulations.

Original languageEnglish
Title of host publication2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages3724-3728
Number of pages5
ISBN (Print)9781424423248
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event2008 IEEE Global Telecommunications Conference, GLOBECOM 2008 - New Orleans, LA, United States
Duration: 30 Nov 20084 Dec 2008

Other

Other2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
CountryUnited States
CityNew Orleans, LA
Period30/11/084/12/08

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Louie, R. H. Y., McKay, M. R., & Collings, I. B. (2008). Sum Capacity of Opportunistic Scheduling for Multiuser MIMO Systems with Linear Receivers. In 2008 IEEE Global Telecommunications Conference, GLOBECOM 2008 (pp. 3724-3728). [4698490] Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/GLOCOM.2008.ECP.715