Joint beamforming and power allocation for MIMO two-way relaying channels

Chee Yen Leow, Zhiguo Ding, Kin K. Leung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

We consider multi-input multi-output (MIMO), two way relaying channels where a pair of multi-antenna users wish to exchange information with the help of a non-regenerative, multi-antenna relay. We propose a joint beamforming and power allocation scheme for all nodes in the network in order to maximise the sum-rate, subject to a total network power constraint. The proposed beamformers first align the channel matrices of the user pair and then decompose the aligned channel matrix into parallel sub-channels. Sum-rate optimising power allocation is proposed to allocate power between all sub-channels and nodes. Simulation results justify that the proposed beamforming scheme significantly outperforms regenerative MIMO one-way relaying, under several different power allocation strategies.

Original languageBritish English
Title of host publication2011 IEEE International Conference on Communications Workshops, ICC 2011 Workshops
DOIs
StatePublished - 2011
Event2011 IEEE International Conference on Communications Workshops, ICC 2011 Workshops - Kyoto, Japan
Duration: 5 Jun 20119 Jun 2011

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Conference

Conference2011 IEEE International Conference on Communications Workshops, ICC 2011 Workshops
Country/TerritoryJapan
CityKyoto
Period5/06/119/06/11

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