M-PSK cooperative trellis codes for coordinate interleaved coded cooperation

Authors:
Özgür Oruç;Ümit Aygölü
Affiliations:
Faculty of Electrical and Electronics Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey;Faculty of Electrical and Electronics Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
Venue:
EURASIP Journal on Wireless Communications and Networking - Special issue on cooperative communications in wireless networks
Year:
2009

Citing 6
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Abstract

M-PSK cooperative trellis codes are proposed for two-user coordinate interleaved coded cooperation operating over quasistatic Rayleigh fading channels. The coding approach properly combines cooperative and modulation diversity techniques to take their full advantage. Two selective cooperation schemes are considered related to whether users know the cooperation status or not. Upper bounds on the pairwise error probability of the considered schemes are derived for each cooperation case which lead to new code design criteria. Based on these criteria, 4-, 8-, 16-state QPSK and 8-, 16-state 8PSK cooperative trellis codes are obtained by means of exhaustive computer search. The error performance evaluation of the new codes by computer simulations shows that they outperform the corresponding best space-time codes used in cooperation with coordinate interleaving.