Half-Duplex Estimate-and-Forward Relaying: Bounds and Code Design

dc.citation.bibtexNameinproceedingsen_US
dc.citation.conferenceNameIEEE International Symposium on Informatin Theory (ISIT)en_US
dc.contributor.authorChakrabarti, Arnaben_US
dc.contributor.authorde Baynast, Alexandreen_US
dc.contributor.authorSabharwal, Ashutoshen_US
dc.contributor.authorAazhang, Behnaamen_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:39:23Zen_US
dc.date.available2007-10-31T00:39:23Zen_US
dc.date.issued2006-07-01en_US
dc.date.modified2006-06-01en_US
dc.date.note2006-06-01en_US
dc.date.submitted2006-07-01en_US
dc.descriptionConference Paperen_US
dc.description.abstractWe propose a coding scheme for half-duplex estimate-and-forward relaying. Our first contribution is to present an achievable rate for the estimate-and-forward protocol. We also derive the achievable rate for the special case of a Gaussian half-duplex relay channel. Guided by the information theoretic coding scheme for the aforementioned achievable rate, we propose a practical coding scheme. The proposed coding scheme incorporates several design choices to reduce receiver complexity without compromising performance. Binary LDPC codes are used in the source broadcast phase. Estimation is performed by scalar quantization of the received signal at the relay. Finally, a procedure similar to maximal ratio combining is used to aggregate direct and relayed signals at the destination. An important practical advantage of our scheme is that it does not require symbol level source-relay synchronization. The codes outperform direct and two-hop channel capacities, as well as decode-and-forward relaying when the relay-destination link is strong.en_US
dc.identifier.citationA. Chakrabarti, A. de Baynast, A. Sabharwal and B. Aazhang, "Half-Duplex Estimate-and-Forward Relaying: Bounds and Code Design," 2006.en_US
dc.identifier.urihttps://hdl.handle.net/1911/19783en_US
dc.language.isoengen_US
dc.subjectrelayen_US
dc.subjectestimate-and-forwarden_US
dc.subjectLDPCen_US
dc.subject.keywordrelayen_US
dc.subject.keywordestimate-and-forwarden_US
dc.subject.keywordLDPCen_US
dc.titleHalf-Duplex Estimate-and-Forward Relaying: Bounds and Code Designen_US
dc.typeConference paperen_US
dc.type.dcmiTexten_US
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Cha2006Jul5HalfDuplex.PDF
Size:
103 KB
Format:
Adobe Portable Document Format
Collections