Implicit diversity combining based on the em algorithm for fading channels with correlated path components

P. Spasojević, C. N. Georghiades

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

7 Scopus citations

Abstract

An iterative pilot symbol aided procedure for detection in multipath fading channels that does not neglect intersymbol interference (ISI) and achieves diversity combining with unresolved signal path components is introduced. The algorithm resolves the received signal into components corresponding to each path. The estimated components are combined for obtaining the next sequence estimate, and, thus, no signal energy is lost. The proposed approach attempts iterative unconstrained maximization of the likelihood function using the expectation-maximization (EM) algorithm. The EM solution is based on the approach to parameter estimation for superimposed signals introduced by Feder and Weinstein (1988). It allows for symbol-by-symbol maximization in the M-step for orthogonal signaling pulses.

Original languageEnglish (US)
Title of host publication1999 IEEE Wireless Communications and Networking Conference, WCNC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages15-19
Number of pages5
ISBN (Electronic)0780356683
DOIs
StatePublished - 1999
Externally publishedYes
Event1st IEEE Annual Wireless Communications and Networking Conference, WCNC 1999 - New Orleans, United States
Duration: Sep 21 1999Sep 24 1999

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
Volume1
ISSN (Print)1525-3511

Other

Other1st IEEE Annual Wireless Communications and Networking Conference, WCNC 1999
CountryUnited States
CityNew Orleans
Period9/21/999/24/99

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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