IEEE Transactions on Vehicular Technology · 2012 · 25 citations · 11 references
EngineeringCommunicationElectrical EngineeringDigital CommunicationInformation TheoryWireless CommunicationsBeamformingChannel CapacityChannel Performance AnalysisCooperative CommunicationDiversity TechniquesWireless Channel ModelingBeamforming AlgorithmsBeamforming TechniquesMultiple Input Multiple Output CommunicationsMultiple-input Multiple-output BeamformingMultiple-input Multiple-output CommunicationReceive BeamformingRelay ChannelTwo-way Relaying
In this paper, we propose a simple yet effective beamforming technique for multiple-input–multiple-output (MIMO) multipair two-way relay channels. Two key ingredients in our technique are adoption of signal space alignment (SSA) for transmit and receive beamforming and amplify-and-forward (AF) relay beamforming using advanced zero-forcing (ZF) technique. From the sum-rate analysis on MIMO multipair two-way relay channels, we show that the proposed method achieves multiplexing gain proportional to the number of user pairs.
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