EM-based procedure for iterative maximum-likelihood decoding and simultaneous channel state estimation on slow-fading channels

Kyuhyoun Park, James W. Modestino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The use of channel state information (CSI) is known to result in significant performance advantages in coded systems operating on fading channels. The relative performance advantages in using CSI are generally established through assessment of the two extreme cases of perfect and no CSI. Typically, the more severe the fading the greater the predicted relative performance advantage of perfect CSI. Little work has been done, however, in the development and characterization of explicit estimation techniques for recovering CSI on representative fading channels. In this work we present one such scheme based upon use of the Expectation-Maximization (EM) algorithm. More specifically, we pose the maximum-likelihood (ML) decoding problem as an incomplete data problem which is easily solved using the EM algorithm. The resulting EM-based procedure provides an iterative scheme for simultaneous ML decoding and channel state estimation. We demonstrate through simulation that this scheme is capable of providing performance close to that predicted on the slow-fading Rician channel when perfect CSI is available.

Original languageEnglish
Title of host publicationIEEE International Symposium on Information Theory - Proceedings
Place of PublicationPiscataway, NJ, United States
PublisherIEEE
StatePublished - Dec 1 1994
EventProceedings of the 1994 IEEE International Symposium on Information Theory - Trodheim, Norw
Duration: Jun 27 1994Jul 1 1994

Other

OtherProceedings of the 1994 IEEE International Symposium on Information Theory
CityTrodheim, Norw
Period6/27/947/1/94

Fingerprint

Channel state information
State estimation
Fading channels
Maximum likelihood
Decoding

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Park, K., & Modestino, J. W. (1994). EM-based procedure for iterative maximum-likelihood decoding and simultaneous channel state estimation on slow-fading channels. In IEEE International Symposium on Information Theory - Proceedings Piscataway, NJ, United States: IEEE.

EM-based procedure for iterative maximum-likelihood decoding and simultaneous channel state estimation on slow-fading channels. / Park, Kyuhyoun; Modestino, James W.

IEEE International Symposium on Information Theory - Proceedings. Piscataway, NJ, United States : IEEE, 1994.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Park, K & Modestino, JW 1994, EM-based procedure for iterative maximum-likelihood decoding and simultaneous channel state estimation on slow-fading channels. in IEEE International Symposium on Information Theory - Proceedings. IEEE, Piscataway, NJ, United States, Proceedings of the 1994 IEEE International Symposium on Information Theory, Trodheim, Norw, 6/27/94.
Park K, Modestino JW. EM-based procedure for iterative maximum-likelihood decoding and simultaneous channel state estimation on slow-fading channels. In IEEE International Symposium on Information Theory - Proceedings. Piscataway, NJ, United States: IEEE. 1994
Park, Kyuhyoun ; Modestino, James W. / EM-based procedure for iterative maximum-likelihood decoding and simultaneous channel state estimation on slow-fading channels. IEEE International Symposium on Information Theory - Proceedings. Piscataway, NJ, United States : IEEE, 1994.
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