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2008
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One- and Two-Way Decode-and-Forward Relaying for Wireless Multiuser MIMO Networks

8 years 8 months ago
One- and Two-Way Decode-and-Forward Relaying for Wireless Multiuser MIMO Networks
— In this paper, we propose multiuser multiple-input multiple-ouput (MIMO) one- and two-way relaying protocols. Several wireless MIMO node pairs are establishing either unidirectional or bidirectional transmission links via a single decodeand-forward MIMO relay without causing interference to each other. For both half-duplex two-phase relaying protocols, the relay separates messages of different node pairs spatially by using zero-forcing based methods, whereas, in order to cancel the interference within the bidirectional links, XOR precoding followed by self-interference cancellation is employed. Both sum rate and maxmin fairness optimizations, as well as quality-ofservice assurance, are considered for the design of the precoders at the relay. The corresponding optimization algorithms for both one- and two-way relaying have been developed using semidefinite programming, which consider the intersection of multiple access and broadcast phases’ rate regions.
Celal Esli, Armin Wittneben
Added 29 May 2010
Updated 29 May 2010
Type Conference
Year 2008
Where GLOBECOM
Authors Celal Esli, Armin Wittneben
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