Space-Time Coding
Hot topic: physical-layer network coding
Proceedings of the 12th annual international conference on Mobile computing and networking
XORs in the air: practical wireless network coding
IEEE/ACM Transactions on Networking (TON)
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
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In this paper, we explore the advantages of network coding and space-time coding in improving the performance of two-way relay channel communications where two terminals absent of direct link exchange information through a single relay in between. Network coding allows embracing interference from other terminals thereby turning it into a capacity boost. Application of space-time codes yields higher capacity by exploiting spatial diversity. The joint performance of both aforementioned techniques is studied in this paper. Specifically, we propose a new class of decode-and-forward (DF) relaying strategy, evaluated in terms of bit error rate by both theoretical analysis and simulation. Based on our results, DF outperforms the existing amplify-and-decode and partial-decode-and-forward protocols.