Partially Coherent Constellations for Multiple-Antenna Systems

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dc.citation.bibtexNameinproceedingsen_US
dc.citation.conferenceNameAsilomar Conference on Signals, Systems, and Computersen_US
dc.citation.locationAsilomar Grounds, CAen_US
dc.contributor.authorBorran, Mohammad Jaberen_US
dc.contributor.authorSabharwal, Ashutoshen_US
dc.contributor.authorAazhang, Behnaamen_US
dc.contributor.authorVarshney, Prabodhen_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:37:54Zen_US
dc.date.available2007-10-31T00:37:54Zen_US
dc.date.issued2003-11-20en_US
dc.date.modified2003-12-02en_US
dc.date.note2003-07-17en_US
dc.date.submitted2003-11-20en_US
dc.descriptionConference Paperen_US
dc.description.abstractWe consider the problem of digital communication in a Rayleigh flat fading environment using a multiple antenna system. We assume that the transmitter doesnâ t know the channel coefficients, and that the receiver has only an estimate of them. We further assume that the transmitter and receiver know the statistics of the estimation error. We will refer to this system as a partially coherent system. In an earlier work, we had derived a design criterion for the partially coherent constellations based on maximizing the minimum KL distance between conditional distributions. We had also designed single transmit antenna constellations using this criterion, which showed substantial improvement in the performance over existing and widely-used constellations. In this work, using the KL-based design criterion, we design partially coherent constellations for multiple antenna systems, and evaluate their performance through simulation. We show that, even with only a few percent channel estimation error, the new constellations achieve significant performance gains over the conventional constellations and existing multiple antenna techniques. The proposed constellations are multi-level, with multi-dimensional spherical constellations at each level. We also propose a recursive construction for the constituent spherical subsets of the multiple-antenna partially coherent constellations.en_US
dc.description.sponsorshipNokiaen_US
dc.identifier.citationM. J. Borran, A. Sabharwal, B. Aazhang and P. Varshney, "Partially Coherent Constellations for Multiple-Antenna Systems," 2003.en_US
dc.identifier.doihttp://dx.doi.org/10.1109/ACSSC.2003.1292069en_US
dc.identifier.urihttps://hdl.handle.net/1911/19749en_US
dc.language.isoengen_US
dc.subjectPartially coherent communicationen_US
dc.subjectimperfect channel state informationen_US
dc.subjectmultiple-antenna systemsen_US
dc.subjectwireless communicationsen_US
dc.subject.keywordPartially coherent communicationen_US
dc.subject.keywordimperfect channel state informationen_US
dc.subject.keywordmultiple-antenna systemsen_US
dc.subject.keywordwireless communicationsen_US
dc.titlePartially Coherent Constellations for Multiple-Antenna Systemsen_US
dc.typeConference paperen_US
dc.type.dcmiTexten_US
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