DocumentCode :
1198377
Title :
Trellis-coded unitary space-time modulation
Author :
Bahceci, Israfil ; Duman, Tolga M.
Author_Institution :
Sch. of Eng., Arizona State Univ., Tempe, AZ, USA
Volume :
3
Issue :
6
fYear :
2004
Firstpage :
2005
Lastpage :
2012
Abstract :
Space-time coding is well established for high data rate communications over wireless channels with perfect channel state information. On the other hand, the case where the channel state information is unknown has received limited attention. Recently, a new signaling scheme called unitary space-time modulation that is suitable for the latter case has been proposed. We describe the use and design of trellis-coded space-time modulation schemes that use unitary space-time constellations. We construct these codes using a novel suboptimal code design criteria and study the performance of trellis-coded unitary space-time modulation for block fading channels under the assumption of no channel state information. Simulation results show that the proposed schemes improve the performance compared to uncoded transmission with the same spectral efficiency. The results are also compared with the turbo-coded modulation scheme Bahceci (2002) and the differential detection scheme described Jafarkhani (2001) under the same assumptions.
Keywords :
data communication; differential detection; fading channels; radio networks; space-time codes; telecommunication signalling; trellis coded modulation; turbo codes; block fading channel; channel state information; differential detection scheme; high data rate communication; space-time coding; suboptimal code design criteria; trellis-coded unitary space-time modulation; turbo-coded modulation scheme; unitary space-time constellation; wireless channel; Channel state information; Fading; MIMO; Modulation coding; Multiaccess communication; Receiving antennas; Transmitters; Transmitting antennas; Turbo codes; Wireless communication;
fLanguage :
English
Journal_Title :
Wireless Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
1536-1276
Type :
jour
DOI :
10.1109/TWC.2004.837644
Filename :
1374909
Link To Document :
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