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Binary adaptive coded pilot symbol assisted modulation over Rayleigh fading channels without feedback

Show simple item record Abou-Faycal I. Medard M. Madhow U.
dc.contributor.editor 2005 2017-09-07T07:07:54Z 2017-09-07T07:07:54Z 2005
dc.identifier 10.1109/TCOMM.2005.849998
dc.identifier.issn 00906778
dc.description.abstract Pilot symbol assisted modulation (PSAM) is a standard approach for transceiver design for time-varying channels, with channel estimates obtained from pilot symbols being employed for coherent demodulation of the data symbols. In this paper, we show that PSAM schemes can be improved by adapting the coded modulation strategy at the sender to the quality of the channel measurement at the receiver, without requiring any channel feedback from the receiver. We consider performance in terms of achievable rate for binary signaling schemes. The transmitter employs interleaved codes, with data symbols coded according to their distance from the nearest pilot symbols. Symbols far away from pilot symbols encounter poorer channel measurements at the receiver anal are therefore coded with lower rate codes, while symbols dose to pilot symbols benefit from recent channel measurements and are coded with higher rate codes. The performance benefits from this approach are quantified in the context of binary signaling over time-varying Rayleigh fading channels described by a Gauss-Markov model. The spacing of the pilot symbols is optimized to maximize the mutual information between input and output in this setting. Causal and noncausal channel estimators of varying complexity and delay are considered. It is shown that, by appropriate optimization for the spacing between consecutive pilot symbols, the adaptive coding techniques proposed can improve achievable rate, without any feedback from the receiver to the sender. Moreover, channel estimation based on the two closest pilot symbols is generally close to optimal. © 2005 IEEE.
dc.format.extent Pages: (1036-1046)
dc.language English
dc.publisher PISCATAWAY
dc.relation.ispartof Publication Name: IEEE Transactions on Communications; Publication Year: 2005; Volume: 53; no. 6; Pages: (1036-1046);
dc.source Scopus
dc.title Binary adaptive coded pilot symbol assisted modulation over Rayleigh fading channels without feedback
dc.type Article
dc.contributor.affiliation Abou-Fayçal, I., Electrical and Computer Engineering Department, American University of Beirut, Beirut 1107 2020, Lebanon, Laboratory for Information and Decision Systems, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
dc.contributor.affiliation Médard, M., Laboratory for Information and Decision Systems, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
dc.contributor.affiliation Madhow, U., Department of Electrical and Computer Engineering, University of California, Santa Barbara, CA 93106, United States
dc.contributor.authorAddress Abou-Fayçal, I.; Electrical and Computer Engineering Department, American University of Beirut, Beirut 1107 2020, Lebanon; email:
dc.contributor.authorCorporate University: American University of Beirut; Faculty: Faculty of Engineering and Architecture; Department: Electrical and Computer Engineering;
dc.contributor.authorDepartment Electrical and Computer Engineering
dc.contributor.faculty Faculty of Engineering and Architecture
dc.contributor.authorInitials Abou-Faycal, I
dc.contributor.authorInitials Medard, M
dc.contributor.authorInitials Madhow, U
dc.contributor.authorReprintAddress Abou-Faycal, I (reprint author), Amer Univ Beirut, Dept Elect and Comp Engn, Beirut 2020, Lebanon.
dc.contributor.authorUniversity American University of Beirut
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dc.description.citedCount 28
dc.description.citedTotWOSCount 25
dc.description.citedWOSCount 25
dc.format.extentCount 11
dc.identifier.coden IECMB
dc.identifier.scopusID 22144449663
dc.publisher.address 445 HOES LANE, PISCATAWAY, NJ 08855 USA
dc.relation.ispartOfISOAbbr IEEE Trans. Commun.
dc.relation.ispartOfIssue 6
dc.relation.ispartofPubTitle IEEE Transactions on Communications
dc.relation.ispartofPubTitleAbbr IEEE Trans Commun
dc.relation.ispartOfVolume 53
dc.source.ID WOS:000229975700020
dc.type.publication Journal
dc.subject.otherAuthKeyword Adaptive modulation
dc.subject.otherAuthKeyword Fading channels
dc.subject.otherAuthKeyword Gauss-Markov
dc.subject.otherAuthKeyword Pilot symbol assisted modulation
dc.subject.otherAuthKeyword Rayleigh fading
dc.subject.otherAuthKeyword Time-varying channels
dc.subject.otherIndex Codes (symbols)
dc.subject.otherIndex Communication channels (information theory)
dc.subject.otherIndex Demodulation
dc.subject.otherIndex Kalman filtering
dc.subject.otherIndex Markov processes
dc.subject.otherIndex Mathematical models
dc.subject.otherIndex Optimization
dc.subject.otherIndex Rayleigh fading
dc.subject.otherIndex Signal encoding
dc.subject.otherIndex Signal receivers
dc.subject.otherIndex Statistical methods
dc.subject.otherIndex Transmitters
dc.subject.otherIndex Adaptive modulation
dc.subject.otherIndex Bayesian least squares estimation (BLSE)
dc.subject.otherIndex Fading channels
dc.subject.otherIndex Gauss-Markov model
dc.subject.otherIndex Pilot symbol assisted modulation
dc.subject.otherIndex Time varying channels
dc.subject.otherIndex Modulation
dc.subject.otherKeywordPlus MOBILE RADIO
dc.subject.otherKeywordPlus CAPACITY
dc.subject.otherKeywordPlus INFORMATION
dc.subject.otherKeywordPlus QAM
dc.subject.otherKeywordPlus COMMUNICATION
dc.subject.otherKeywordPlus PERFORMANCE
dc.subject.otherKeywordPlus SYSTEMS
dc.subject.otherKeywordPlus MODEMS
dc.subject.otherKeywordPlus OFDM
dc.subject.otherWOS Engineering, Electrical and Electronic
dc.subject.otherWOS Telecommunications

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