Post-Scheduling SINR Mismatch Analysis for Multiuser Orthogonal Random Beamforming Systems

Author

Kim, Chanhong ; Jung, Sungkyu ; Lee, Jungwoo

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., Seoul, South Korea

Volume

59

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1509

Lastpage

1513

Abstract

In this letter, we analyze the post-scheduling SINR mismatch of a multiuser orthogonal random beamforming (ORBF) system. The mismatch probability is derived for a Gaussian broadcast channel with M transmit antennas and K single-antenna users. Numerical results are shown to be identical to theoretical results. The probability analysis enables us to calculate the minimum number of users to satisfy a target mismatch probability. Another way to use the mismatch probability is to control CQI mismatch handling mechanisms.

Keywords

Gaussian channels; array signal processing; broadcast antennas; broadcast channels; multiuser channels; probability; transmitting antennas; CQI mismatch handling mechanisms; Gaussian broadcast channel; multiuser orthogonal random beamforming system; post-scheduling SINR mismatch analysis; single-antenna users; target mismatch probability; transmit antennas; Array signal processing; Indexes; Interference; MIMO; Receivers; Signal to noise ratio; Transmitting antennas; CQI mismatch probability; Channel quality indicator; orthogonal random beamforming;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2011.041111.100191

Filename

5753993