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Cooperative Wireless Communications with Unequal Error Protection and Fixed Decode-And-Forward Relays
Ansvarlig organisasjon
2010 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert) Published
Abstract [en]

In this paper, we examine an unequal error protection (UEP) scheme for wireless imaging that is based on utilizing the distributed diversity offered by decode-and-forward (DF) networks. Specifically, the data stream after source encoding is divided into high and low priority sub-streams depending on their importance for image reconstruction. A relay-selection combining (R-SC) scheme is exploited for high priority image data to achieve high reliability while cooperative spatial multiplexing is employed to low priority image data to support high spectral efficiency. In this work, we specifically take into account the setting that relays may forward erroneously detected signals to the destination when cooperating with fixed DF. In this context, the analytical and numerical results validate that R-SC outperforms other relaying protocols in terms of average symbol error probability while the considered UEP approach offers the highest spectral efficiency among the examined relaying schemes.

sted, utgiver, år, opplag, sider
Nha Trang, Vietnam: IEEE , 2010.
Emneord [en]
unequal error protection
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-7809Lokal ID: oai:bth.se:forskinfo71385388A5946D13C125773F003B59C3OAI: oai:DiVA.org:bth-7809DiVA, id: diva2:835471
Konferanse
International Conference on Communications and Electronics (ICCE)
Tilgjengelig fra: 2012-09-18 Laget: 2010-06-11 Sist oppdatert: 2015-06-30bibliografisk kontrollert

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Zepernick, Hans-Jürgen

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