Convex Optimization
Two-Way Radio Networks with a Star Topology
IZS '06 Proceedings of the 2006 International Zurich Seminar on Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Capacity bounds and power allocation for wireless relay channels
IEEE Transactions on Information Theory
Broadcast Capacity Region of Two-Phase Bidirectional Relaying
IEEE Transactions on Information Theory
Finite-SNR diversity-multiplexing tradeoffs in fading relay channels
IEEE Journal on Selected Areas in Communications
Spectral efficient protocols for half-duplex fading relay channels
IEEE Journal on Selected Areas in Communications
Power allocation for bidirectional AF relaying over Rayleigh fading channels
IEEE Communications Letters
Technoeconomic evaluation of cooperative relaying transmission techniques in OFDM cellular networks
EURASIP Journal on Advances in Signal Processing - Special issue on cooperative MIMO multicell networks
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The two-way relay channel (TWRC) describes the communication between two terminals sharing a common relay. In this work we compare different protocols for the TWRC with a half-duplex relay (forwarding and protocol I) and transmission schemes (Network Coding Relaying with random binning and XOR precoding), when the relay works in decode-and-forward and without channel state information at the transmitters. We provide the optimal resource allocation (in terms of phase duration, data rate and power allocation) when there is an individual or sum-average power constraint over the terminals. Closed-form solutions are derived whenever it is possible, while for others cases we show that the resource allocation can be formulated as a convex problem, which means that the solution can be obtained by low-complexity interior point methods.