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Robust MMSE Precoding Strategy for Multiuser MIMO Relay Systems with Switched Relaying and Side Information

Robust MMSE Precoding Strategy for Multiuser MIMO Relay Systems with Switched Relaying and Side Information
Robust MMSE Precoding Strategy for Multiuser MIMO Relay Systems with Switched Relaying and Side Information
In this work, we propose a minimum mean squared error (MMSE) robust base station (BS) precoding strategy based on switched relaying (SR) processing and limited transmission of side information for interference suppression in the downlink of multiuser multiple-input multiple-output (MIMO) relay systems. The BS and the MIMO relay station (RS) are both equipped with a codebook of interleaving matrices. For a given channel state information (CSI) the selection function at the BS chooses the optimum interleaving matrix from the codebook based on two optimization criteria to design the robust precoder. Prior to the payload transmission the BS sends the index corresponding to the selected interleaving matrix to the RS, where the best interleaving matrix is selected to build the optimum relay processing matrix. The entries of the codebook are randomly generated unitary matrices. Simulation results show that the performance of the proposed techniques is significantly better than prior art in the case of imperfect CSI.1
Cai, Yunlong
44a85b9f-185b-4078-aecd-02df90f5eab6
Lamare, Rodrigo C. de
1c3794c6-40e0-46dd-aa0b-a706f16fa7ea
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Zhao, Minjian
d552c3c1-57fd-4643-b914-4572ef291edf
Cai, Yunlong
44a85b9f-185b-4078-aecd-02df90f5eab6
Lamare, Rodrigo C. de
1c3794c6-40e0-46dd-aa0b-a706f16fa7ea
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Zhao, Minjian
d552c3c1-57fd-4643-b914-4572ef291edf

Cai, Yunlong, Lamare, Rodrigo C. de, Yang, Lie-Liang and Zhao, Minjian (2013) Robust MMSE Precoding Strategy for Multiuser MIMO Relay Systems with Switched Relaying and Side Information. 2013 IEEE Wireless Communications and Networking Conference (WCNC 2013), Shanghai, China. 07 - 10 Apr 2013.

Record type: Conference or Workshop Item (Paper)

Abstract

In this work, we propose a minimum mean squared error (MMSE) robust base station (BS) precoding strategy based on switched relaying (SR) processing and limited transmission of side information for interference suppression in the downlink of multiuser multiple-input multiple-output (MIMO) relay systems. The BS and the MIMO relay station (RS) are both equipped with a codebook of interleaving matrices. For a given channel state information (CSI) the selection function at the BS chooses the optimum interleaving matrix from the codebook based on two optimization criteria to design the robust precoder. Prior to the payload transmission the BS sends the index corresponding to the selected interleaving matrix to the RS, where the best interleaving matrix is selected to build the optimum relay processing matrix. The entries of the codebook are randomly generated unitary matrices. Simulation results show that the performance of the proposed techniques is significantly better than prior art in the case of imperfect CSI.1

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Published date: 7 April 2013
Venue - Dates: 2013 IEEE Wireless Communications and Networking Conference (WCNC 2013), Shanghai, China, 2013-04-07 - 2013-04-10
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 351300
URI: https://eprints.soton.ac.uk/id/eprint/351300
PURE UUID: 349b7990-7c5b-415b-b581-efb5cedca04c
ORCID for Lie-Liang Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 17 Apr 2013 19:46
Last modified: 20 Jul 2019 01:12

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