TY - GEN
T1 - Khatri-Rao space-time codes with maximum diversity gains over frequency-selective channels
AU - Budampati, Ramakrishna S.
AU - Sidiropoulos, Nicholas D.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - 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.
AB - 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.
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U2 - 10.1109/SAM.2002.1191076
DO - 10.1109/SAM.2002.1191076
M3 - Conference contribution
AN - SCOPUS:83755211395
T3 - Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
SP - 432
EP - 436
BT - 2002 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAME 2002
PB - IEEE Computer Society
T2 - IEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002
Y2 - 4 August 2002 through 6 August 2002
ER -