Title :
Nonuniform unitary space-time codes for layered source coding
Author :
Larsson, Erik G. ; Wong, Wing-Hin
fDate :
5/1/2004 12:00:00 AM
Abstract :
We discuss new space-time codes tailored to point-to-multipoint, or broadcast, communications using layered source coding. Our codes can be encoded (and decoded) differentially, and they are based entirely on phase-shift keying. We discuss design criteria for the codes, and the design of optimal and suboptimal receiver structures. We also discuss the relation between our codes and a differentially encoded Alamouti code. Finally, we illustrate how our codes can be used to improve the throughput of a broadcasting network.
Keywords :
broadcast channels; channel coding; modulation coding; phase shift keying; source coding; space-time codes; broadcast communications; broadcasting network; differentially encoded Alamouti code; layered source coding; nonuniform unitary space time codes; phase shift keying; point to multipoint communications; receiver structures; Decoding; Digital audio broadcasting; MIMO; Phase shift keying; Radio broadcasting; Receivers; Receiving antennas; Source coding; TV broadcasting; Throughput; Differential encoding; ML; PSK; diversity; maximum likelihood; nonuniform constellations; phase-shift keying; space–time coding;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2004.827741
