TY - JOUR
T1 - Some super-orthogonal space-time trellis codes based on non-PSK MTCM
AU - Song, Aijun
AU - Wang, Genyuan
AU - Xia, Xiang Gen
PY - 2005/5
Y1 - 2005/5
N2 - Super-orthogonal space-time trellis codes recently proposed in the literature are space-time trellis codes of full diversity and high rates systematically constructed by concatenating orthogonal space-time codes and multiple trellis coded modulation (MTCM). However, the existing MTCM only has designs for phase-shift keying (PSK) signals. In this paper, MTCM is extended from PSK signals to non-PSK signals in some special cases. With obtained constellations of MTCM, several super-orthogonal space-time trellis codes for two transmit antennas are presented. The 2- and 4-state codes have a simple mathematical expression for the coding gain distance (CGD), or diversity products. At rates 2.5, 3, 3.5, 4 bits/s/Hz, the newly proposed codes outperform the existing ones.
AB - Super-orthogonal space-time trellis codes recently proposed in the literature are space-time trellis codes of full diversity and high rates systematically constructed by concatenating orthogonal space-time codes and multiple trellis coded modulation (MTCM). However, the existing MTCM only has designs for phase-shift keying (PSK) signals. In this paper, MTCM is extended from PSK signals to non-PSK signals in some special cases. With obtained constellations of MTCM, several super-orthogonal space-time trellis codes for two transmit antennas are presented. The 2- and 4-state codes have a simple mathematical expression for the coding gain distance (CGD), or diversity products. At rates 2.5, 3, 3.5, 4 bits/s/Hz, the newly proposed codes outperform the existing ones.
KW - Alamouti's scheme
KW - Coding gain distance (CGD)
KW - Lattices
KW - Multiple trellis coded modulation (MTCM)
KW - Orthogonal design
KW - Space-time trellis codes
UR - http://www.scopus.com/inward/record.url?scp=18844378655&partnerID=8YFLogxK
U2 - 10.1109/TWC.2005.847110
DO - 10.1109/TWC.2005.847110
M3 - Article
AN - SCOPUS:18844378655
SN - 1536-1276
VL - 4
SP - 1214
EP - 1221
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 3
ER -