Title
Optimal Codeword Design For Precoded Uwb (Puwb) Systems
Abstract
A precoding technique applied to symbols transmitted in an ultra-wideband (UWB) system was proposed in [1], which can concentrate the signal power at the receiver to facilitate data detection. The design of the optimal codeword for precoding is investigated in this work. After the problem is formulated, we examine its solution in the full-rank space as well as the reduced-rank subspace to get different tradeoff between detection performance and the amount of feedback messages. Furthermore, we propose two subspace selection schemes that are suitable for different channel conditions. The codeword obtained from this work improves the performance of the result in [1] significantly at the price of a larger amount of feedback messages.
Year
DOI
Venue
2006
10.1109/GLOCOM.2006.613
GLOBECOM 2006 - 2006 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE
Keywords
Field
DocType
ultra wideband
Subspace topology,Data detection,Computer science,Communication channel,Real-time computing,Code word,Precoding
Conference
ISSN
Citations 
PageRank 
1930-529X
0
0.34
References 
Authors
9
4
Name
Order
Citations
PageRank
Yu-Hao Chang1477.71
Shang-ho Tsai218824.44
Xiaoli Yu3374.95
C. -C. Jay Kuo450.93