On the Performance of Multiuser MIMO Systems in WCDMA/HSDPA : Beamforming, Feedback and User Diversity(Wireless Communication Technologies)

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概要

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• Several multiple-input multiple-output (MIMO) techniques have been proposed for 3GPP WCDMA/HSDPA systems and several performance evaluation for the comparison purpose are in progress. Most MIMO candidates in HSDPA have been generally designed for point-to-point communication, which means that a single-user throughput is of their major concern. However, multiple users and user scheduling need to be considered in wireless packet transmission, so as to maximize system throughput. In this paper we propose an effective user scheduling technique in both space and time domains that offers three main benefits, which are the spatial-beamforming, uplink feedback signaling, and advanced receivers. Furthermore, user scheduling is combined with modified successive interference cancellation (SIC) reception, which allocates all transmit antennas to the best user with SIC or each transmit antenna to different users with minimum mean squared-error (MMSE). Simulation results show that the proposed scheme has higher user diversity gain than other MIMO candidates in terms of achievable throughput.

• 社団法人電子情報通信学会の論文
• 2006-08-01

著者

• Park Chang

  Eecs Ee At Seoul National University

• KIM James

  EECS, EE at Seoul National University

• KIM Hojin

  Communication Lab. at SAMSUNG AIT

• PARK Chang

  EECS, EE at Seoul National University

• LEE Kwang

  EECS, EE at Seoul National University

• KIM James(Sungjin)

  EECS EE at Seoul National University

• LEE Kwang

  EECS EE at Seoul National University

関連論文

• On the Performance of Multiuser MIMO Systems in WCDMA/HSDPA : Beamforming, Feedback and User Diversity(Wireless Communication Technologies)
• Adaptive Precoding for Wireless MIMO Broadcast Channels with Limited Feedback(Software Defined Radio Technology and Its Applications)

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