Achievable sum rate bounds of zero-forcing based linear multi-user MIMO systems

Chan Byoung Chae, Robert W. Heath, David Mazzarese

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

17 Citations (Scopus)

Abstract

In this paper, jointly optimized linear transmit beamforming and receive processing for the downlink of a multi-user multiple input multiple output (MIMO) system is investigated. In this system the base station, equipped with multiple antennas, transmits to several users, who are also equipped with multiple antennas. To solve the dimensionality constraint imposing by conventional block diagonalization (BD), we propose an iteration based coordinated beamforming (CBF) method and also consider block diagonalization with receive antenna selection (BDRAS) for performance comparison. We show the upper and lower bounds on ergodic sum rate of CBF and BDRAS. Analysis and simulation results show that the proposed beamforming always outperforms conventional BDRAS, and achieves a sum rate close to the MIMO broadcast channel (BC) sum capacity.

Original languageEnglish
Title of host publication44th Annual Allerton Conference on Communication, Control, and Computing 2006
PublisherUniversity of Illinois at Urbana-Champaign, Coordinated Science Laboratory and Department of Computer and Electrical Engineering
Pages1134-1140
Number of pages7
ISBN (Electronic)9781604237924
Publication statusPublished - 2006 Jan 1
Event44th Annual Allerton Conference on Communication, Control, and Computing 2006 - Monticello, United States
Duration: 2006 Sep 272006 Sep 29

Publication series

Name44th Annual Allerton Conference on Communication, Control, and Computing 2006
Volume3

Other

Other44th Annual Allerton Conference on Communication, Control, and Computing 2006
CountryUnited States
CityMonticello
Period06/9/2706/9/29

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Computer Networks and Communications

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    Chae, C. B., Heath, R. W., & Mazzarese, D. (2006). Achievable sum rate bounds of zero-forcing based linear multi-user MIMO systems. In 44th Annual Allerton Conference on Communication, Control, and Computing 2006 (pp. 1134-1140). (44th Annual Allerton Conference on Communication, Control, and Computing 2006; Vol. 3). University of Illinois at Urbana-Champaign, Coordinated Science Laboratory and Department of Computer and Electrical Engineering.