Performance Bounds for Bidirectional Coded Cooperation Protocols
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- 21 October 2008
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Information Theory
- Vol. 54 (11) , 5235-5241
- https://doi.org/10.1109/tit.2008.929913
Abstract
In coded bidirectional cooperation, two nodes wish to exchange messages over a shared half-duplex channel with the help of a relay. In this correspondence, we derive performance bounds for this problem for each of three decode-and-forward protocols. The first protocol is a two phase protocol where both users simultaneously transmit during the first phase and the relay alone transmits during the second. In this protocol, our bounds are tight. The second protocol considers sequential transmissions from the two users followed by a transmission from the relay while the third protocol is a hybrid of the first two protocols and has four phases. In the latter two protocols the bounds are not identical. Numerical evaluation shows that in some cases of interest our bounds do not differ significantly. Finally, in the Gaussian case with path loss, we derive achievable rates and compare the relative merits of each protocol. This case is of interest in cellular systems. Surprisingly, we find that in some cases, the achievable rate region of the four phase protocol contains points that are outside the outer bounds of the other two protocols.Keywords
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This publication has 8 references indexed in Scilit:
- Network Coding and Random Binning for Multi-User ChannelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- Achievable Rate Region of a Two Phase Bidirectional Relay ChannelPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- Coded Bi-directional RelayingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Achievable Rate Regions for the Two-way Relay ChannelPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- The Anti-Packets Can Increase the Achievable Throughput of a Wireless Multi-Hop NetworkPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Bi-directional Amplification of Throughput in a Wireless Multi-Hop NetworkPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Fundamentals of Convex AnalysisPublished by Springer Nature ,2001
- Network information flowIEEE Transactions on Information Theory, 2000