Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2010, Vol. 33 ›› Issue (3): 107-111.doi: 10.13190/jbupt.201003.107.wangl

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A Complexity-Reduced Joint Transceiver Design for 

Multiuser MIMO Downlink

WANG Li, CUI Wei-jia, HU Han-ying   

  1. (Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China)

  • Received:2009-07-28 Revised:2010-01-08 Online:2010-06-28 Published:2010-05-14

Abstract:

A method to reduce the complexity of joint transceiver design based on minimum sum mean 

square error (sum-MSE) criterion under the constraint of sum power for multiuser multiple-input 

multiple-output (MIMO) is presented by transforming the conditional optimization problem into 

unconditional optimization(it doesn’t need to solve the nonlinear high order equation to obtain 

Lagrangian multiplier). Simulation results indicate that the proposed algorithm can effectively 

reduce the computation complexity as well as improve the BER performance remarkably.

Key words: multiuser multiple-input multiple-output, joint transceiver design, minimum sum mean square error criterion, Lagrangian multiplier