NDLI: Robust EM-based detection of BICM-OFDM transmissions in the presence of narrowband interference

Content Provider	IEEE Xplore Digital Library
Author	Sanguinetti, L. Morelli, M. Poor, H.V.
Copyright Year	2010
Description	Author affiliation: Department of Information Engineering, University of Pisa, Pisa, Italy (Sanguinetti, L.; Morelli, M.) \|\| Department of Electrical Engineering, Princeton University, Princeton, NJ USA (Poor, H.V.)
Abstract	Future wireless communications systems are expected to coexist with different commercial applications over the same frequency bands. This gives rise to co-channel interference, which strongly affects the error-rate performance. In this work, an orthogonal frequency-division multiplexing system with bit-interleaved coded-modulation is considered and the problem of data detection in the presence of unknown narrowband interference (NBI) is addressed. In particular, an iterative detector that operates according to the expectation-maximization algorithm is derived under the assumption that the interference power on each subcarrier can be modeled as a random variable with an inverse gamma distribution. Computer simulations indicate that the proposed solution is remarkably robust to NBI and outperforms existing alternatives in severe interference environments.
Starting Page	696
Ending Page	700
File Size	287691
Page Count	5
File Format	PDF
ISBN	9781424459995
e-ISBN	9781424460014
DOI	10.1109/EW.2010.5483414
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-12
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Gamma ray detectors Robustness Random variables Frequency division multiplexing Gamma ray detection Interchannel interference Expectation-maximization algorithms Power system modeling Narrowband
Content Type	Text
Resource Type	Article

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