Show simple item record

dc.contributor.authorRajan, Dinesh
Erkip, Elza
Aazhang, Behnaam
dc.creatorRajan, Dinesh
Erkip, Elza
Aazhang, Behnaam 2007-10-31T00:58:46Z 2007-10-31T00:58:46Z 2003-05-20 2001-12-11
dc.identifier.citation D. Rajan, E. Erkip and B. Aazhang, "Spreading and Power Allocation for Multiple Antenna Transmission using Decorrelating receivers," IEEE Journal in Selected Areas in Communication, vol. 2, no. 3, 2003.
dc.description Journal Paper
dc.description.abstract We 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.
dc.description.sponsorship Texas Advanced Technology Program
dc.description.sponsorship Nokia
dc.description.sponsorship National Science Foundation
dc.language.iso eng
multiple antenna
power control
dc.title Spreading and Power Allocation for Multiple Antenna Transmission using Decorrelating receivers
dc.type Journal article
dc.citation.bibtexName article
dc.citation.journalTitle IEEE Journal in Selected Areas in Communication 2003-12-02
dc.contributor.orgCenter for Multimedia Communications (
multiple antenna
power control
dc.citation.volumeNumber 2
dc.citation.issueNumber 3
dc.type.dcmi Text
dc.type.dcmi Text
dc.citation.firstpage 436
dc.citation.lastpage 445

Files in this item


This item appears in the following Collection(s)

  • ECE Publications [1412]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students

Show simple item record