Title :
Trellis-coded modulation and transmit diversity: design criteria and performance evaluation
Author :
Alamouti, Sajjad Mehri ; Tarokh, Vahid ; Poon, Patrick
Author_Institution :
Cadence Design Syst., Alta Bus. Unit, Bellevue, WA, USA
Abstract :
This paper presents the selection criteria for trellis codes used with the simple transmit diversity scheme proposed in Alamouti (1998) and reviewed in this paper. The optimum metrics for soft decision Viterbi decoding are derived and the asymptotic coding gains are calculated. The design method achieves both coding gain and a diversity order of 2 using 2 transmit antennas and 1 receive antenna. It is also demonstrated that trellis codes optimized for AWGN are also optimal for use in conjunction with the transmit diversity scheme in Rayleigh fading
Keywords :
AWGN channels; Rayleigh channels; Viterbi decoding; trellis coded modulation; AWGN; Rayleigh fading; asymptotic coding gains; coding gain; design criteria; optimum metrics; performance evaluation; receive antenna; selection criteria; soft decision Viterbi decoding; transmit antennas; transmit diversity; trellis-coded modulation; Bandwidth; Base stations; Convolutional codes; Costs; Diversity reception; Fading; Maximum likelihood estimation; Modulation coding; Receiving antennas; Transmitting antennas;
Conference_Titel :
Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7803-5106-1
DOI :
10.1109/ICUPC.1998.733058
