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| Sang Joon Kim, Patrick Mitran, Vahid Tarokh, "Performance Bounds for Bi-Directional Coded Cooperation Protocols," 2012 32nd International Conference on Distributed Computing Systems Workshops, pp. 83, 27th International Conference on Distributed Computing Systems Workshops (ICDCSW'07), 2007. | |||
| BibTex | x | ||
| @article{ 10.1109/ICDCSW.2007.109, author = {Sang Joon Kim and Patrick Mitran and Vahid Tarokh}, title = {Performance Bounds for Bi-Directional Coded Cooperation Protocols}, journal ={2012 32nd International Conference on Distributed Computing Systems Workshops}, volume = {0}, year = {2007}, issn = {1545-0678}, pages = {83}, doi = {http://doi.ieeecomputersociety.org/10.1109/ICDCSW.2007.109}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, } | |||
| RefWorks Procite/RefMan/Endnote | x | ||
| TY - CONF JO - 2012 32nd International Conference on Distributed Computing Systems Workshops TI - Performance Bounds for Bi-Directional Coded Cooperation Protocols SN - 1545-0678 SP EP A1 - Sang Joon Kim, A1 - Patrick Mitran, A1 - Vahid Tarokh, PY - 2007 KW - null VL - 0 JA - 2012 32nd International Conference on Distributed Computing Systems Workshops ER - | |||
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 inner and outer bounds are not identical, and differ in a manner similar to the inner and outer bounds of Cover?s relay channel. Numerical evaluation shows that at least 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 in various regimes. Surprisingly, we find that in some cases, the achievable rate region of the four phase protocol sometimes contains points that are outside the outer bounds of the other protocols.