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| Linear Precoder Design for Amplify-and-Forward MIMO Relay Systems with Channel Estimation Errors |
| ZOU Jun-1, LIU Wei-1, LUO Han-Wen-1, YU Hui-1, MA Ji-Peng-2 |
| (1. School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. State Key Laboratory of Wireless Communications(CATT)＼Leadcore Technology Co., Ltd., Shanghai 201206, China） |
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Abstract
A linear relay precoder design scheme was proposed for the amplifyandforward MIMO relay system with channel estimation errors modeled as Gaussian random variables. The closedform solution was derived based on the minimum mean squared error (MMSE) criterion. The numerical results show that compared with other schemes that do not consider channel estimation errors, our scheme achieves better performance in terms of both mean squared error (MSE) and bit error rate (BER).
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Received: 07 July 2010
Published: 29 July 2011
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