Khatri-Rao space-time codes with maximum diversity gains over frequency-selective channels

Ramakrishna S. Budampati, Nicholas D. Sidiropoulos

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

7 Scopus citations

Abstract

Spatial diversity as well as multipath diversity can be exploited by Space-Time (ST) coding techniques in the presence of frequency-selective channels. A new class of linear ST codes, known as Khatri-Rao ST codes, have recently been proposed for the flat-fading channel scenario. These codes provide built-in blind channel identifiability and rate diversity flexibility. We study the extension of these codes to the frequency-selective channel case. These codes can handle any transmit/receive antenna configuration and signal constellation. They are designed to achieve the maximum possible spatial and multipath diversity in scattering rich frequency-selective channels, equal to the product of the number of antennas and the number of FIR channel taps. The proposed codes are shown to have desirable properties like guaranteed unique linear decodability, built-in blind channel identifiability and efficient near maximum likelihood decoding.

Original languageEnglish (US)
Title of host publication2002 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAME 2002
PublisherIEEE Computer Society
Pages432-436
Number of pages5
ISBN (Electronic)0780375513
DOIs
StatePublished - Jan 1 2002
EventIEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002 - Rosslyn, United States
Duration: Aug 4 2002Aug 6 2002

Publication series

NameProceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
Volume2002-January
ISSN (Electronic)2151-870X

Other

OtherIEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002
CountryUnited States
CityRosslyn
Period8/4/028/6/02

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