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Adaptive co-channel interference (CCI) cancellation for OFDM communication systems

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2 Author(s)
H. Yoshino ; Wireless Labs., NTT DoCoMo, Kanagawa, Japan ; A. Czylwik

This paper proposes a new adaptive co-channel interference (CCI) canceller for an orthogonal frequency division multiplexing (OFDM) scheme. It employs a parametric CCI cancellation scheme, least-mean-squares (LMS) maximum-likelihood estimation (MLE), which simultaneously estimates time-varying channels and transmitted symbols both for desired and CCI signals. Computer simulations were performed on interference canceling characteristics of the proposed CCI canceller both under static and Rayleigh fading conditions, wherein a single CCI is considered. Computer simulations confirm that the proposed canceller attains a BER of 1.5×10-2 at a signal-to-interference ratio of -10 dB in Rayleigh fading condition with the maximum Doppler frequency of 52 Hz and average Eb/N0 of 30 dB

Published in:

Broadband Communications, 2000. Proceedings. 2000 International Zurich Seminar on

Date of Conference:

2000