A closed-form approximation for capacity of multiuser MIMO broadcast systems: A virtual user approach

Li-Chun Wang*, Chu Jung Yeh, Chi Fang Li

*Corresponding author for this work

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

Besides delivering high data rates in a point-to-point scenario, multi-input multi-output (MIMO) antenna techniques can broadcast personalized data to multiple users in the point-to-multipoint scenario. Zero-forcing beamforming (ZFB) is a suboptimal but simple MIMO broadcast technique, which basically decouple the MIMO channel into many parallel singleinput single-output (SISO) channels. In this article, we first derive the closed-form expression for the sum rate of the ZFB MIMO broadcast system with random user selection. Secondly, under the condition with finite users, we develop a virtual user approach approximation method for estimating the sum rate of the ZFB MIMO broadcast system with exhaustive user selection. Our results indicate that the proposed analysis method can accurately estimate the optimal sum-rate throughput of ZFB.

原文English
主出版物標題WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings
頁面408-412
頁數5
DOIs
出版狀態Published - 18 九月 2008
事件IEEE Wireless Communications and Networking Conference, WCNC 2008 - Las Vegas, NV, United States
持續時間: 31 三月 20083 四月 2008

出版系列

名字IEEE Wireless Communications and Networking Conference, WCNC
ISSN(列印)1525-3511

Conference

ConferenceIEEE Wireless Communications and Networking Conference, WCNC 2008
國家United States
城市Las Vegas, NV
期間31/03/083/04/08

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  • 引用此

    Wang, L-C., Yeh, C. J., & Li, C. F. (2008). A closed-form approximation for capacity of multiuser MIMO broadcast systems: A virtual user approach. 於 WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings (頁 408-412). [4489108] (IEEE Wireless Communications and Networking Conference, WCNC). https://doi.org/10.1109/WCNC.2008.77