and Benefit of Cooperation with Michelle Effros and Michael Langberg. Ieee International Symposium on Information Theory, Honolulu, June/July 2014. Ieee International Symposium on Information Theory, Hong Kong, June 2015. Let the "cooperation rate" be the capacity of the CF bottleneck link. Caltechthesis pdf, can Negligible Rate Increase Network Reliability? Ieee Xplore arXiv, the Unbounded Benefit of Encoder Cooperation for the k -user MAC with Michelle Effros and Michael Langberg. Ieee International Symposium on Information Theory, Barcelona, July 2016. Ieee Transactions on Information Theory, June 2017 (to appear in print). Proceedings of the ieee International Symposium on Information Theory, June 2015. The central idea behind the construction of networks that exhibit such effects is the introduction of a node, referred to as the "cooperation facilitator" (CF that allows other network nodes to work together to reduce interference. Abstract, communication over a point-to-point link is relatively well understood.
We demonstrate the existence of a class of such networks where a finite capacity link results in a rate gain for each source that far exceeds the capacity of that link. We show that for a class of MACs, the presence of a CF leads to a sum-capacity gain that, as a function of the cooperation rate, has an infinite slope at cooperation rate zero. California Institute of Technology, June 2017. In addition to sum-capacity gain, cooperation under the CF model also improves reliability. Nonetheless, progress in this area has important consequences in both the theoretical and practical aspects of communication networks. Can Negligible Cooperation Increase Network Reliability? Submitted to the ieee Transactions on Information Theory, September 2016. On the Power of Cooperation: Can a Little Help a Lot?
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With Michelle Effros and Michael Langberg. Extended version submitted to the ieee Transactions on Information Theory, September 2016. In this work, we focus on the role of a single link in networks that in addition to point-to-point links, contain "multi-terminal components." An example of a network consisting of a single multi-terminal component is the uplink in a wireless communication network where multiple transmitters. This class of MACs includes well-known examples such as the Gaussian MAC and the binary adder MAC. Proceedings of the ieee International Symposium on Information Theory, July 2016. This is an example of a "network effect the phenomenon where a resource, here link capacity, is significantly more valuable in a network than in isolation. On the Cost and Benefit of Cooperation. Here we measure the "value" of the finite capacity link by the sum-capacity gain per source that it enables. Ieee International Symposium on Information Theory, Aachen, June 2017. This means that the bottleneck link of the CF is significantly more valuable in some networks than in isolation. ArXiv, the Birthday Problem and Zero-Error List Codes with Michelle Effros, Michael Langberg, and Victoria Kostina.
Ieee Xplore arXiv with Michelle Effros and Michael Langberg. Ieee Xplore, extended Version, the Benefit of Encoder Cooperation in the Presence of State Information with Michelle Effros and Michael Langberg.
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