TY - GEN
T1 - On the power of cooperation
T2 - 2014 IEEE International Symposium on Information Theory, ISIT 2014
AU - Noorzad, Parham
AU - Effros, Michelle
AU - Langberg, Michael
AU - Ho, Tracey
PY - 2014
Y1 - 2014
N2 - In this paper, we propose a new cooperation model for discrete memoryless multiple access channels. Unlike in prior cooperation models (e.g., conferencing encoders), where the transmitters cooperate directly, in this model the transmitters cooperate through a larger network. We show that under this indirect cooperation model, there exist channels for which the increase in sum-capacity resulting from cooperation is significantly larger than the rate shared by the transmitters to establish the cooperation. This result contrasts both with results on the benefit of cooperation under prior models and results in the network coding literature, where attempts to find examples in which similar small network modifications yield large capacity benefits have to date been unsuccessful.
AB - In this paper, we propose a new cooperation model for discrete memoryless multiple access channels. Unlike in prior cooperation models (e.g., conferencing encoders), where the transmitters cooperate directly, in this model the transmitters cooperate through a larger network. We show that under this indirect cooperation model, there exist channels for which the increase in sum-capacity resulting from cooperation is significantly larger than the rate shared by the transmitters to establish the cooperation. This result contrasts both with results on the benefit of cooperation under prior models and results in the network coding literature, where attempts to find examples in which similar small network modifications yield large capacity benefits have to date been unsuccessful.
UR - http://www.scopus.com/inward/record.url?scp=84906544664&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2014.6875411
DO - 10.1109/ISIT.2014.6875411
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AN - SCOPUS:84906544664
SN - 9781479951864
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 3132
EP - 3136
BT - 2014 IEEE International Symposium on Information Theory, ISIT 2014
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 29 June 2014 through 4 July 2014
ER -