Throughput Analysis in Asymmetric Two-Way Relay Channel with Random Access

We consider the two-way relay channel with random access for the cases of symmetric and asymmetric channel statistics in the low SNR regime. We propose three different schemes implementing different physical layer techniques for collision recovery and channel adaptation and obtain analytical throughput expressions. We compare the proposed schemes with several benchmarks in order to study their bandwidth gains in practical scenarios.

[1]  Petar Popovski,et al.  The Anti-Packets Can Increase the Achievable Throughput of a Wireless Multi-Hop Network , 2006, 2006 IEEE International Conference on Communications.

[2]  Joachim Hagenauer,et al.  Iterative Network and Channel Decoding for the Two-Way Relay Channel , 2006, 2006 IEEE International Conference on Communications.

[3]  Sachin Katti,et al.  Embracing wireless interference: analog network coding , 2007, SIGCOMM '07.

[4]  J. Nayak,et al.  Rate regions for the separated two-way relay channel , 2008, 2008 46th Annual Allerton Conference on Communication, Control, and Computing.

[5]  Michael Gastpar,et al.  Compute-and-forward: Harnessing interference with structured codes , 2008, 2008 IEEE International Symposium on Information Theory.

[6]  Jie Hou,et al.  Distributed turbo coding schemes for asymmetric two-way relay communication , 2008, 2008 5th International Symposium on Turbo Codes and Related Topics.

[7]  Michele Zorzi,et al.  On the design of practical asynchronous physical layer network coding , 2009, 2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications.

[8]  Osvaldo Simeone,et al.  Throughput analysis of type-I HARQ strategies in Two-Way Relay Channels , 2009, 2009 43rd Annual Conference on Information Sciences and Systems.

[9]  Christoph Hausl,et al.  Outage behavior of bidirectional half-duplex relaying schemes , 2009, 2009 IEEE Information Theory Workshop.

[10]  Toshiaki Koike-Akino,et al.  Physical layer network coding for FSK systems , 2009, IEEE Communications Letters.

[11]  Branka Vucetic,et al.  Practical physical layer network coding for two-way relay channels: performance analysis and comparison , 2010, IEEE Transactions on Wireless Communications.

[12]  Giuseppe Cocco,et al.  Opportunistic Adaptive Transmission for Network Coding Using Nonbinary LDPC Codes , 2010, EURASIP J. Wirel. Commun. Netw..

[13]  Francesco Rossetto,et al.  Optimal time and rate allocation for a network-coded bidirectional two-hop communication , 2010, 2010 European Wireless Conference (EW).

[14]  Natasha Devroye,et al.  Capacity bounds on multi-pair two-way communication with a base-station aided by a relay , 2010, 2010 IEEE International Symposium on Information Theory.