Sum-rate analysis of MIMO broadcast channel with random unitary beamforming

Peng Lu, Hong Chuan Yang, Young-Chai Ko

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

10 Citations (Scopus)

Abstract

In this paper, we present the exact sum-rate analysis of the multiuser MIMO system with random unitary beamforming (RUB). Specifically, with the derived statistics of ordered beam signal to interference and noise ratio, we obtain the analytical expression of system sum rate for arbitrary number of users. The effects of system parameters, including the number of users, the number of transmit antennas and the signal to noise ratio (SNR), on the sum rate are examined through numerical methods. Besides, we develop an upper bound for the sum rate, which reveals that the sum rate with RUB benefits mainly from multiuser directional diversity gain when SNR is high.

Original languageEnglish
Title of host publicationIEEE Wireless Communications and Networking Conference, WCNC
Pages533-537
Number of pages5
Publication statusPublished - 2008 Sep 18
EventIEEE Wireless Communications and Networking Conference, WCNC 2008 - Las Vegas, NV, United States
Duration: 2008 Mar 312008 Apr 3

Other

OtherIEEE Wireless Communications and Networking Conference, WCNC 2008
CountryUnited States
CityLas Vegas, NV
Period08/3/3108/4/3

Keywords

  • And wireless communications
  • MIMO broadcast channel
  • Multiuser diversity
  • Random unitary beamforming
  • Sum-rate analysis

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Lu, P., Yang, H. C., & Ko, Y-C. (2008). Sum-rate analysis of MIMO broadcast channel with random unitary beamforming. In IEEE Wireless Communications and Networking Conference, WCNC (pp. 533-537). [4489130]