An algebraic approach to network coding
IEEE/ACM Transactions on Networking (TON)
XORs in the air: practical wireless network coding
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Hot topic: physical-layer network coding
Proceedings of the 12th annual international conference on Mobile computing and networking
Embracing wireless interference: analog network coding
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
On capacity of random wireless networks with physical-layer 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
A linear analog network coding for asynchronous two-way relay networks
IEEE Transactions on Wireless Communications
Cooperative wireless networks based on physical layer network coding
IEEE Wireless Communications
Synchronization Analysis for Wireless TWRC Operated with Physical-layer Network Coding
Wireless Personal Communications: An International Journal
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In this paper, we discuss the channel coding design to support the two-phase Physical-Layer Network Coding (PLNC) under a typical three-node network coding scenario. We prove, even two source nodes could use different channel codes, the error correction capability at the relay node is bounded by that of the weaker one, i.e. the code with a smaller minimum distance. Therefore, we propose to use the same channel code at two source nodes, which can also provide potential to simplify the joint PLNC-channel decoding procedure (PLNC-DEC) at the relay node. Moreover, we propose a channel coding scheme based on linear convolutional codes to relax the strict synchronization requirement, which is difficult to achieve in some real applications. The proposed coding scheme is robust to the synchronization error between two source nodes and enables the relay node to perform the PLNC-DEC with only one Viterbi decoding procedure. Compared to the three-phase network coding scheme, the proposed scheme reduces the decoding/demodulation complexity of the relay node almost by half and achieves significant throughput gain.