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, aswell as a structured encoder with separate encoders for the different users, are proposed. The ﬁrst encoderoutperforms the latter, which in turn offers large improvements compared to state-of-the-art, over a widerange of channel signal-to-noise ratios. Our proposed methods handle bandwidth expansion, i.e., usageof more channel than source dimensions, automatically. We also derive a lower bound on the distortion.
Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2012. Vol. 60, no 4, 2085-2090 p.
broadcast channel, joint source-channel coding
National CategoryCommunication Systems
IdentifiersURN: urn:nbn:se:liu:diva-73221DOI: 10.1109/TSP.2011.2180716ISI: 000301355500047OAI: oai:DiVA.org:liu-73221DiVA: diva2:469257
FunderSwedish Research CouncilKnut and Alice Wallenberg Foundation
funding agencies|Swedish Research Council (VR)||Swedish Foundation for Strategic Research (SSF)||Security Link||Knut and Alice Wallenberg Foundation||2011-12-222011-12-222012-04-13Bibliographically approved