DocumentCode
1430471
Title
Sphere Decoding Based Multiple Symbol Detection for Differential Space-Time Block Coded Ultra-Wideband Systems
Author
Wang, Taotao ; Lv, Tiejun ; Gao, Hui
Author_Institution
Sch. of Inf. & Commun. Eng., Beijing Univ. of Posts & Telecommun. (BUPT), Beijing, China
Volume
15
Issue
3
fYear
2011
fDate
3/1/2011 12:00:00 AM
Firstpage
269
Lastpage
271
Abstract
In this letter, a sphere decoding (SD) based noncoherent multiple symbol detection (MSD) scheme is proposed for differential space-time block coded (DSTBC) ultra-wideband (UWB) impulse radio systems. Exhaustive search based maximum likelihood (ML) MSD is impractical in DSTBC-UWB systems since its complexity exponentially increases with observation window size. To decrease the computational complexity, the original MSD metric is transformed into another equivalent form which can be implemented by SD for DSTBC-UWB systems.
Keywords
decoding; space-time block codes; ultra wideband communication; differential space time block coded ultrawideband system; maximum likelihood MSD; noncoherent multiple symbol detection scheme; sphere decoding; ultrawideband impulse radio system; Computational complexity; Decoding; Measurement; Receiving antennas; Transmitting antennas; DSTBC; UWB; multiple symbol detection; noncoherent; sphere decoding;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2010.011011.101877
Filename
5692884
Link To Document