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Power allocation and code construction for space-time turbo trellis codes with partial CSI feedback

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5 Author(s)
Kingsley, J. ; Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW ; Allan, A. ; Li, Y. ; Vucetic, B.
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Conventional space-time turbo trellis coding (STTuTC) schemes allocate transmit power equally to the available antennas. This is not optimal if channel state information (CSI) is available at the transmitter. A STTuTC scheme is considered with partial CSI knowledge that optimally allocates power to the transmit antennas. This scheme is referred to as STTuTC with dynamic transmit power allocation (STTuTC/DTPA). The optimum four-state constituent code and power allocation are presented. Simulation results show that the STTuTC/DTPA scheme with the new code outperforms conventional STTuTC schemes.

Published in:

Electronics Letters  (Volume:44 ,  Issue: 11 )