@inproceedings{chenozgur14,
 abstract = {In this paper we examine the value of feedback that comes from overhearing, without dedicated feedback resources. We focus on a simple model for this purpose: a deterministic two-hop interference channel, where feedback comes from overhearing the forward-links. A new aspect brought by this setup is the dual-role of the relay signal. While the relay signal needs to convey the source message to its corresponding destination, it can also provide a feedback signal which can potentially increase the capacity of the first hop. We derive inner and outer bounds on the sum capacity which match for a large range of the parameter values. Our results identify the parameter ranges where overhearing can provide non-negative capacity gain and can even achieve the performance with dedicated-feedback resources. The results also provide insights into which transmissions are most useful to overhear.},
 author = {Chen, J. and Ozgur, A. and Diggavi, S.N.},
 booktitle = {Annual Allerton Conference on Communication, Control, and Computing (Allerton)},
 file = {:papers:fto_cod.pdf},
 month = {Sep},
 tags = {conf,IT,WiNet,WiNetInfFlow},
 title = {Feedback through overhearing},
 type = {4},
 year = {2014}
}

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