Spreading and Power Allocation for Multiple Antenna Transmission using Decorrelating receivers

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dc.citation.bibtexNamearticleen_US
dc.citation.firstpage436en_US
dc.citation.issueNumber3en_US
dc.citation.journalTitleIEEE Journal in Selected Areas in Communicationen_US
dc.citation.lastpage445en_US
dc.citation.volumeNumber2en_US
dc.contributor.authorRajan, Dineshen_US
dc.contributor.authorErkip, Elzaen_US
dc.contributor.authorAazhang, Behnaamen_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:58:46Zen_US
dc.date.available2007-10-31T00:58:46Zen_US
dc.date.issued2003-05-20en_US
dc.date.modified2003-12-02en_US
dc.date.submitted2001-12-11en_US
dc.descriptionJournal Paperen_US
dc.description.abstractWe propose a new scheme for multiple antenna transmission in the context of spread spectrum signaling. The new scheme consists of using shifted Gold sequences to modulate independent information on the multiple antennas. We show that this strategy of using Multiphase Spreading (MPS) on different antennas greatly improves the throughput over currently known spread-spectrum multiple-antenna methods. We also find the optimal power allocation strategy among multiple transmit antennas for a fixed rate of channel state information, which might be provided via a feedback link, at the transmitter. We demonstrate the differences in optimal power distribution for maximizing capacity and minimizing probability of outage. When the transmission from the two antennas uses orthogonal spreading, we find that optimizing the power does not give much gain over the equal power transmission. However, when the transmissions are not orthogonal as in the case of MPS, then allocating power to maximize throughput gives considerable gain over equal power transmission. We also consider the effect of imperfections in the feedback channel on the optimal power allocation and show that our power allocation scheme is robust to feedback errors.en_US
dc.description.sponsorshipTexas Advanced Technology Programen_US
dc.description.sponsorshipNokiaen_US
dc.description.sponsorshipNational Science Foundationen_US
dc.identifier.citationD. Rajan, E. Erkip and B. Aazhang, "Spreading and Power Allocation for Multiple Antenna Transmission using Decorrelating receivers," <i>IEEE Journal in Selected Areas in Communication,</i> vol. 2, no. 3, 2003.en_US
dc.identifier.doihttp://dx.doi.org/10.1109/TWC.2003.811053en_US
dc.identifier.urihttps://hdl.handle.net/1911/20217en_US
dc.language.isoengen_US
dc.subjectCDMAen_US
dc.subjectmultiple antennaen_US
dc.subjectpower controlen_US
dc.subject.keywordCDMAen_US
dc.subject.keywordmultiple antennaen_US
dc.subject.keywordpower controlen_US
dc.titleSpreading and Power Allocation for Multiple Antenna Transmission using Decorrelating receiversen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
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