Paper Info
Title
Channel Estimation Improvement With Frequency Domain Mmse Equalization For Pcp-Sc System
Abstract
In this paper, we propose a simple but effective way of improving the performance of channel estimation (CE) for pilot cyclic prefixed single carrier (PCP-SC) system. The proposed method utilizes the property that the shifting signal of the PCP pilot signal can also be utilized to estimate the channel information. The receiver can continuously estimate the channel information by just shifting the received pilot signal. Regardless of the signal-to-noise ratio (SNR) and the pilot type, the proposed method can achieve about a 1.72 dB performance gain in terms of the mean squared error (MSE) of channel estimation with a slight increase in computational complexity. The BER performance with the proposed CE improvement are evaluated in a multipath fading channel using a zero-forcing (ZF) equalizer and an minmum mean squared error (MMSE) equalizer by computer simulation. It is shown that the proposed CE improvment method using an MMSE equalizer which has an unbiased vlaue of noise variance (NV) estimator gives a promising BER performance. The proposed method also benefits the estimation of the SNR for the single carrier system.
Year
DOI
Venue
2011
10.1587/transcom.E94.B.1690
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
pilot cyclic prefixed single carrier (PCP-SC) system, Unique word, Channel estimation (CE), MMSE equalizer, unbiased noise variance (NV) estimator
Equalization (audio),Computer science,Signal-to-noise ratio,Communication channel,Algorithm,Mean squared error,Speech recognition,Estimation theory,Pilot signal,Estimator,Distributed computing,Bit error rate
Journal
Volume
Issue
ISSN
E94B
6
0916-8516
Citations 
PageRank 
References 
0
0.34
8
Authors
2
Name
Order
Citations
PageRank
Yafei Hou1194.47
Tomohiro Hase2411.51