Open AccessPerformance of ultra‐wideband time‐reversal systems under imperfect channel side information at the transmitter
Author(s) -
Zia U.,
Naqvi I. H.,
Uppal M.
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.3878
Subject(s) - transmitter , wideband , channel (broadcasting) , telecommunications , computer science , electronic engineering , ultra wideband , imperfect , engineering , linguistics , philosophy
The performance of time‐reversal ultra‐wideband systems under imperfect channel side information at the transmitter (CSIT) is investigated. Considering CSIT imperfections caused by estimation errors as well as the channel's time‐varying nature, a bound is derived on the amount of channel decorrelation that the system can withstand while still achieving a target bit error rate floor. The theoretical results are supported by Monte Carlo simulations, indicating a robust performance in the presence of estimation errors and/or outdated CSIT.