Maximum-diversity transmissions over time-selective wireless channels

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

20 Scopus citations

Abstract

Carrier frequency-offsets and mobility-induced Doppler shifts introduce time-selectivity in wireless links. Doppler-RAKE receivers have been developed for collecting the resulting diversity gains only for spread-spectrum systems. Relying on a basis expansion model of time-selective channels, we find that the maximum achievable Doppler diversity is determined by the rank of the correlation matrix of the channel's expansion coefficients. We also prove that RAKE reception can not collect maximum diversity gains, unless the transmission is appropriately designed. Finally, we design such block precoded transmissions to ensure maximum diversity gains, and provide thorough simulations to corroborate our theoretical findings.

Original languageEnglish (US)
Title of host publicationIEEE Wireless Communications and Networking Conference, WCNC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages497-501
Number of pages5
ISBN (Electronic)0780373766
DOIs
StatePublished - Jan 1 2002
Event2002 IEEE Wireless Communications and Networking Conference, WCNC 2002 - Orlando, United States
Duration: Mar 17 2002Mar 21 2002

Publication series

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

Other

Other2002 IEEE Wireless Communications and Networking Conference, WCNC 2002
CountryUnited States
CityOrlando
Period3/17/023/21/02

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  • Cite this

    Ma, X., & Giannakis, G. B. (2002). Maximum-diversity transmissions over time-selective wireless channels. In IEEE Wireless Communications and Networking Conference, WCNC (pp. 497-501). [993547] (IEEE Wireless Communications and Networking Conference, WCNC; Vol. 1). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2002.993547