TY - GEN
T1 - Using LMS weighting values as the channel state information for OFDM based systems
AU - Kao, Yung An
AU - Wu, Chi Ting
PY - 2005
Y1 - 2005
N2 - In this paper, the Viterbi decoder with aided channel state information (CSI) for OFDM based system is investigated. The CSI is obtained from the weighting values of one-tap frequency domain LMS equalizers on different subcarriers. Comparing to the conventional soft decision Viterbi decoding, the proposed method has better performance due to the different reliabilities. In the simulations, we also compare the circumstances with various CSI sources. By keep updating weighting values, we could observe that the proposed method gains the better performance in contrast to other manners. In addition, the time-average method is used to estimate the CSI more precisely.
AB - In this paper, the Viterbi decoder with aided channel state information (CSI) for OFDM based system is investigated. The CSI is obtained from the weighting values of one-tap frequency domain LMS equalizers on different subcarriers. Comparing to the conventional soft decision Viterbi decoding, the proposed method has better performance due to the different reliabilities. In the simulations, we also compare the circumstances with various CSI sources. By keep updating weighting values, we could observe that the proposed method gains the better performance in contrast to other manners. In addition, the time-average method is used to estimate the CSI more precisely.
UR - https://www.scopus.com/pages/publications/33947118762
M3 - 会议稿件
AN - SCOPUS:33947118762
SN - 0780394046
SN - 9780780394049
T3 - IEEE Workshop on Statistical Signal Processing Proceedings
SP - 161
EP - 166
BT - 2005 IEEE/SP 13th Workshop on Statistical Signal Processing - Book of Abstracts
T2 - 2005 IEEE/SP 13th Workshop on Statistical Signal Processing
Y2 - 17 July 2005 through 20 July 2005
ER -