Paper Info
Title
Joint frequency offset and delay profile estimation technique for nonlinear co-channel interference canceller
Abstract
Co-channel interference is a major factor limiting spectral efficiency of cellular radio systems. A non-linear co-channel interference canceller leading to the significant increase of traffic capacity of cellular systems has been investigated. In this scheme, a maximum-likelihood sequence estimation extended to cancel co-channel interference is combined with trellis-coded modulation to enhance the co-channel interference cancelling capability. However, the bit-error rate performance of this canceller is degraded if there exists a frequency offset between the desired signal and the interference signal. In this paper, a joint frequency offset and delay profile estimation technique for a nonlinear co-channel interference canceller is proposed. In this algorithm, frequency offset is simultaneously estimated during delay profile estimation using the residual error of delay profile estimation. Computer simulations have been performed to demonstrate the performance of the proposed algorithm. It is shown that the allowable frequency offset range of the proposed canceller is over 10 times as large as that of the conventional canceller without frequency offset compensator.
Year
DOI
Venue
1998
10.1109/PIMRC.1998.734246
NINTH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-3
Keywords
DocType
Citations 
residual error,co channel interference,spectral efficiency,degradation,frequency offset,trellis coded modulation,maximum likelihood estimation,bit error rate,maximum likelihood sequence estimation,interference cancellation,computer simulation
Conference
1
PageRank 
References 
Authors
0.38
1
2
Name
Order
Citations
PageRank
Hidekazu Murata116437.72
Susumu Yoshida2455.52