Title :
Performance of BICM-OFDM Systems in Non-Gaussian Noise and Interference
Author :
Nasri, Amir ; Schober, Robert
Author_Institution :
Univ. of British Columbia, Vancouver, BC
Abstract :
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.
Keywords :
AWGN; Viterbi decoding; error statistics; interference (signal); interleaved codes; mathematical analysis; ultra wideband communication; Euclidean distance metric; Gaussian mixture noise; Viterbi decoding; additive white Gaussian noise; bit error rate; bit-interleaved coded modulation; mathematical framework; narrowband interference; nonGaussian interference; nonGaussian noise; orthogonal frequency division multiplexing; performance analysis; signal-to-noise ratios; ultra-wideband interference; AWGN; Additive white noise; Bit error rate; Gaussian noise; Interference; Interleaved codes; Modulation coding; Narrowband; OFDM modulation; Performance analysis;
Conference_Titel :
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Conference_Location :
New Orleans, LO
Print_ISBN :
978-1-4244-2324-8
DOI :
10.1109/GLOCOM.2008.ECP.875
