Hot topic: physical-layer network coding
Proceedings of the 12th annual international conference on Mobile computing and networking
Optimized constellations for two-way wireless relaying with physical network coding
IEEE Journal on Selected Areas in Communications - Special issue on network coding for wireless communication networks
IEEE Transactions on Information Theory
Computation Over Multiple-Access Channels
IEEE Transactions on Information Theory
Performance Bounds for Bidirectional Coded Cooperation Protocols
IEEE Transactions on Information Theory
Optimized constellations for two-way wireless relaying with physical network coding
IEEE Journal on Selected Areas in Communications - Special issue on network coding for wireless communication networks
Adaptive modulation and network coding with optimized precoding in two-way relaying
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
EURASIP Journal on Wireless Communications and Networking - Special issue on physical-layer network coding for wireless cooperative networks
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In this paper, we present a forwarding strategy for two-stage bidirectional relaying in which trellis-coded modulation (TCM) is employed. We reveal that adaptive network coding cannot resolve distance shortening occurred at specific channel conditions when a certain TCM is used. To overcome this issue, we introduce an improved amplify-and-forward (AF) scheme termed pseudo AF (PAF). The proposed strategy adaptively switches network coding and PAF according to the channel information. Computer simulations demonstrate that the proposed approach can improve throughput performance.