Elements of information theory
Elements of information theory
Symmetric feedback capacity of the Gaussian interference channel to within one bit
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Outer bounds on the capacity of Gaussian interference channels
IEEE Transactions on Information Theory
Capacity bounds for Cooperative diversity
IEEE Transactions on Information Theory
Dependence Balance Based Outer Bounds for Gaussian Networks With Cooperation and Feedback
IEEE Transactions on Information Theory
| Hi-index | 0.00 |
Interference Channels (IFC) with Generalized Feedback (GF) model wireless channels where every node overhears the transmission of other nodes and uses it to engage in cooperative communication strategies. The overheard signals, instead of being treated as interference, furnish the basis for cooperation among otherwise uncoordinated users. Although cooperative communications is not equivalent to virtual Multi-Input-Multi-Output (MIMO) communications, it has been shown to benefit the rate performance of all the involved source-destination pairs without increasing neither their transmit powers nor the channel bandwidth. This paper develops a new sum-rate outer bound for Gaussian IFC-GFs based on the idea of giving the receivers the least informative GF signal as side information. We compare our new outer bound with bounds available in the literature and numerically show for which network parameters our bound strictly improves on existing ones.