Iterative Precoding for Multiuser Mult-Relay MIMO System

Li Ting; Yang Lu-xi

doi:10.3724/SP.J.1146.2008.01200

Volume 31 Issue 8

Dec. 2010

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Li Ting, Yang Lu-xi. Iterative Precoding for Multiuser Mult-Relay MIMO System[J]. Journal of Electronics & Information Technology, 2009, 31(8): 1914-1918. doi: 10.3724/SP.J.1146.2008.01200

Citation:

Li Ting, Yang Lu-xi. Iterative Precoding for Multiuser Mult-Relay MIMO System[J]. Journal of Electronics & Information Technology, 2009, 31(8): 1914-1918. doi: 10.3724/SP.J.1146.2008.01200

Li Ting, Yang Lu-xi. Iterative Precoding for Multiuser Mult-Relay MIMO System[J]. Journal of Electronics & Information Technology, 2009, 31(8): 1914-1918. doi: 10.3724/SP.J.1146.2008.01200

Citation:

Li Ting, Yang Lu-xi. Iterative Precoding for Multiuser Mult-Relay MIMO System[J]. Journal of Electronics & Information Technology, 2009, 31(8): 1914-1918. doi: 10.3724/SP.J.1146.2008.01200

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Iterative Precoding for Multiuser Mult-Relay MIMO System

doi: 10.3724/SP.J.1146.2008.01200

Li Ting,
Yang Lu-xi

Received Date: 2008-09-22
Rev Recd Date: 2009-03-30
Publish Date: 2009-08-19

Abstract

Abstract

In this paper, an iterative precoding method is proposed, which successively in turn optimizes the precoding matrix at base station or relay station for suppressing the multiuser interference of multiuser multi-relay MIMO system. Firstly, the multi-relay joint zero forcing precoding is adopted at relay station. Secondly, the channel between the base station and multiple users is taken as an equivalent point-to-multipoint MIMO channel, then the signal-to-leakage ratio precoding method at base station is used to further cancel inter-user interference and avoid the Influence of noise amplification. Furthermore, Multiple iterative precoding at relay stations and base station can maintain better space diversity introduced by parallel transmission of multiple relays, also can achieve higher sum capacity of system.

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References(1)

References

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