Multiuser two-way relaying: detection and interference management strategies
IEEE Transactions on Wireless Communications
Power allocation for multi-access two-way relaying
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Joint scheduling and relay selection in one- and two-way relay networks with buffering
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Splitting algorithms for fast relay selection: generalizations, analysis, and a unified view
IEEE Transactions on Wireless Communications
Performance analysis of bidirectional communication protocols based on decode-and-forward relaying
IEEE Transactions on Communications
Power allocation strategies for distributed space-time codes in two-way relay networks
IEEE Transactions on Signal Processing
A two-step approach to power allocation for OFDM signals over two-way amplify-and-forward relay
IEEE Transactions on Signal Processing
Decode-and-forward two-way relaying with network coding and opportunistic relay selection
IEEE Transactions on Communications
MIMO two-way relay channel with superposition coding and imperfect channel estimation
Journal of Network and Computer Applications
Wireless Personal Communications: An International Journal
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We consider the problem of relay selection in a network with N relay nodes. A half-duplex relay node enables bidirectional communication between two nodes with a spectrally efficient two-phase protocol. In the first phase both nodes transmit their messages to a relay node, which decodes the messages and broadcasts a composition using superposition encoding in the succeeding phase. The probability that the achievable rate region of one relay node contains all other rate regions decreases with the number of relay nodes N. Therefore, we propose a relay selection criterion that decides according to the weighted rate sum for any bidirectional rate pair on the boundary of the achievable rate region individually. If we allow time-sharing between the usage of different relay nodes, we can enlarge the achievable rate region. In an iid Rayleigh fading scenario relay selection realizes multi-user diversity so that the sum-rate of any rate pair on the boundary of the ergodic rate region asymptotically grows with Theta(log(log(/V))).