On Asymmetric Interference Channels with Cooperating Receivers
2013 (English)In: IEEE Transactions on Communications, ISSN 0090-6778, E-ISSN 1558-0857, Vol. 61, no 2, 554-563 p.Article in journal (Refereed) Published
This paper studies a model for communications in wireless networks supported by designated cooperation links. In particular, a 2-user Gaussian one-sided interference channel with two rate-limited and orthogonal communication links between the receivers is considered. A communication protocol for the channel is proposed, which combines rate-splitting and superposition encoding techniques with the conventional decode-forward and compress-forward strategies. It is shown that a careful design of codebooks and coding scheme, which is obtained from intuition based on superposition coding, can greatly reduce the complexity of the strategy. Analytical and numerical results show that the proposed scheme, although not universally optimal, can achieve the capacity region or sum capacity exactly or asymptotically in certain scenarios. Various limits of sum capacity gain due to cooperation are also discussed.
Place, publisher, year, edition, pages
IEEE , 2013. Vol. 61, no 2, 554-563 p.
Interference Channel, Cooperative Communication, Wireless Communication, Backhaul Link
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-107893DOI: 10.1109/TCOMM.2013.010913.110799ISI: 000316204300012ScopusID: 2-s2.0-84874999054OAI: oai:DiVA.org:kth-107893DiVA: diva2:578638
FunderSwedish Foundation for Strategic Research Swedish Research Council
QC 201304122012-12-182012-12-182016-04-19Bibliographically approved