DocumentCode :
997895
Title :
Orthogonal design of unitary constellations for uncoded and trellis-coded noncoherent space-time systems
Author :
Zhao, Wanlun ; Leus, Geert ; Giannakis, Georgios B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Minnesota, Minneapolis, MN, USA
Volume :
50
Issue :
6
fYear :
2004
fDate :
6/1/2004 12:00:00 AM
Firstpage :
1319
Lastpage :
1327
Abstract :
We construct unitary noncoherent space-time constellations, which can be considered as a concatenation of a training block with an orthogonal design. With a simple construction, our constellations are easy to design, enjoy full antenna diversity, allow for a simplified maximum-likelihood (ML) detector, and achieve error performance comparable to existing designs that rely on computer search. To exploit the constellation structures and improve coding gains, we further pursue a trellis-coded modulation (TCM) approach. Based on the sequence pairwise error analysis, we identify two simple parameters to quantify the asymptotic error performance, which enables us to compare among different TCM schemes or uncoded alternatives.
Keywords :
antenna arrays; diversity reception; error analysis; fading channels; maximum likelihood detection; space-time codes; trellis coded modulation; TCM scheme; antenna diversity; asymptotic error performance; coding gain improvement; fading channel; maximum-likelihood detector; sequence pairwise error analysis; trellis-coded modulation; trellis-coded noncoherent space-time system; uncoded noncoherent space-time system; unitary constellation orthogonal design; Computer errors; Design methodology; Detectors; Error analysis; Maximum likelihood detection; Modulation coding; Performance analysis; Student members; System analysis and design; Transmitters; Fading channel; ST; TCM; noncoherent; performance analysis; space–time; trellis-coded modulation;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.2004.828154
Filename :
1302312
Link To Document :
بازگشت