Joint Source-Channel Coding for the MIMO Broadcast Channel
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
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.
Broadcast, downlink, joint source-channel coding (JSCC), low latency, multiple-input multiple-output (MIMO), multi-user, short codes
IdentifiersURN: urn:nbn:se:kth:diva-50914DOI: 10.1109/TSP.2011.2180716ISI: 000301355500047ScopusID: 2-s2.0-84858324773OAI: oai:DiVA.org:kth-50914DiVA: diva2:463020
FunderSwedish Research Council, 621-2010-4428Knut and Alice Wallenberg FoundationICT - The Next Generation
QC 201204162011-12-082011-12-082013-04-11Bibliographically approved