Input-distribution optimization for estimate-and-forward relaying
2012 (English)In: Wireless Communication Systems (ISWCS), 2012 International Symposium on, IEEE , 2012, 201-205 p.Conference paper (Refereed)
We investigate the design of optimized input distributions for the two-hop Gaussian relay channel under an average power constraint. In our study, the relay is confined to implement an estimate-and-forward strategy. We demonstrate that the rate achievable by an optimized discrete input distribution can significantly outperform that achievable by a Gaussian codebook. The lower bound obtained by the optimized EF scheme is also used to establish an improved lower bound on the rates achievable by compress-and-forward.
Place, publisher, year, edition, pages
IEEE , 2012. 201-205 p.
, Proceedings of the International Symposium on Wireless Communication Systems, ISSN 2154-0217
Average power, Compress and forward, Gaussian codebook, Gaussian relays, Lower bounds, Communication systems, Optimization
IdentifiersURN: urn:nbn:se:kth:diva-116665DOI: 10.1109/ISWCS.2012.6328358ScopusID: 2-s2.0-84871287723ISBN: 978-146730760-4OAI: oai:DiVA.org:kth-116665DiVA: diva2:599809
2012 9th International Symposium on Wireless Communication Systems, ISWCS 2012, 28 August 2012 through 31 August 2012, Paris
QC 201301222013-01-222013-01-222013-09-06Bibliographically approved