Title :
A more powerful space-time trellis-coded modulation scheme
Author_Institution :
Dept. of Electron. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
The space-time trellis-coded modulation (STTCM) scheme proposed by Tarokh et al. (1998) provides a good trade-off between constellation size, data rate, diversity advantage and trellis complexity. In this paper, with two transmit antennas and one receive antenna, we found another STTCM scheme, which is concatenated by conventional TCM and Alamouti (1998) space-time code, is more powerful than the former. Analysis and simulation results show that, at the same bandwidth efficiency, the concatenated orthogonal scheme can provides more wonderful coding gain by a lower code rate and higher modulation.
Keywords :
Rayleigh channels; concatenated codes; diversity reception; receiving antennas; space-time codes; transmitting antennas; trellis coded modulation; Rayleigh fading channel; STTCM; bandwidth efficiency; code rate; coding gain; concatenated orthogonal scheme; constellation size; data rate; diversity reception; receive antenna; simulation results; space-time code; space-time trellis-coded modulation; transmit antennas; trellis complexity; AWGN; Bandwidth; Digital modulation; Fading; Modulation coding; Rayleigh channels; Receiving antennas; Space time codes; Transmitting antennas; Wireless communication;
Conference_Titel :
MILCOM 2002. Proceedings
Print_ISBN :
0-7803-7625-0
DOI :
10.1109/MILCOM.2002.1179621
