Performance of BICM-OFDM Systems in Non-Gaussian Noise and Interference

TitlePerformance of BICM-OFDM Systems in Non-Gaussian Noise and Interference
Publication TypeConference Paper
Year of Publication2008
AuthorsNasri, A., and R. Schober
Conference NameGlobal Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Pagination1 -6
Date Publishednov.
Keywordsadditive white Gaussian noise, AWGN, bit error rate, bit-interleaved coded modulation, error statistics, Euclidean distance metric, Gaussian mixture noise, interference (signal), interleaved codes, mathematical analysis, mathematical framework, narrowband interference, nonGaussian interference, nonGaussian noise, orthogonal frequency division multiplexing, performance analysis, signal-to-noise ratios, ultra wideband communication, ultra-wideband interference, Viterbi decoding

In this paper, we present a general mathematical framework for performance analysis of systems employing bit-interleaved coded modulation (BICM) and orthogonal frequency division multiplexing (OFDM). The proposed analysis is general enough to include impairment by general types of noise and interference with finite moments such as additive white Gaussian noise (AWGN), Gaussian mixture noise, narrowband interference, and ultra-wideband interference. We present an asymptotically tight upper bound for the bit error rate (BER) and a closed-form expression for the asymptotic BER at high signal-to-noise ratios. Our analysis shows that, if the popular Euclidean distance metric is used for Viterbi decoding, BICM-OFDM systems optimized for AWGN are also optimum for any other type of noise and interference with finite moments.


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