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Joint Source-Channel Coding for the MIMO Broadcast Channel
Linköpings universitet. (Institutionen för systemteknik)
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-7926-5081
Linköpings universitet. (Institutionen för systemteknik)
2012 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 60, no 4, 2085-2090 p.Article in journal (Refereed) Published
Abstract [en]

We investigate the problem of broadcasting analog sources to several users using short codes, employing several antennas at both the transmitter and the receiver, and channel-optimized quantization. Our main objective is to minimize the sum mean-square error distortion. A joint multi-user encoder, as well as a structured encoder with separate encoders for the different users, are proposed. The first encoder outperforms the latter, which, in turn, offers large improvements compared to state-of-the-art, over a wide range of channel signal-to-noise ratios. Our proposed methods handle bandwidth expansion, i.e., usage of more channel than source dimensions, automatically. We also derive a lower bound on the distortion.

Place, publisher, year, edition, pages
2012. Vol. 60, no 4, 2085-2090 p.
Keyword [en]
Broadcast, downlink, joint source-channel coding (JSCC), low latency, multiple-input multiple-output (MIMO), multi-user, short codes
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-50914DOI: 10.1109/TSP.2011.2180716ISI: 000301355500047Scopus ID: 2-s2.0-84858324773OAI: oai:DiVA.org:kth-50914DiVA: diva2:463020
Funder
Swedish Research Council, 621-2010-4428Knut and Alice Wallenberg FoundationICT - The Next Generation
Note

QC 20120416

Available from: 2011-12-08 Created: 2011-12-08 Last updated: 2017-12-08Bibliographically approved

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Skoglund, Mikael

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