TY - JOUR
T1 - Full diversity distributed space-time trellis codes for asynchronous cooperative communications
AU - Li, Yabo
AU - Xia, Xiang Gen
N1 - Publisher Copyright:
© 2005 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.
PY - 2005
Y1 - 2005
N2 - In current cooperative communication schemes, to achieve cooperative diversity, synchronization between terminals is usually assumed, which may not be practical since each terminal has its own local oscillator. In this paper, based on the stack construction proposed by Hammons and El Gamal, we first construct a family of space-time trellis codes for BPSK modulation scheme that is characterized to possess the full cooperative diversity order without the synchronization assumption. We then generalize this family of space-time trellis codes from BPSK to higher order QAM and PSK modulation schemes based on the unified construction proposed by Lu and Kumar. And also, simplified decoding methods are discussed. Simulation results are given to illustrate the performance of the newly proposed codes.
AB - In current cooperative communication schemes, to achieve cooperative diversity, synchronization between terminals is usually assumed, which may not be practical since each terminal has its own local oscillator. In this paper, based on the stack construction proposed by Hammons and El Gamal, we first construct a family of space-time trellis codes for BPSK modulation scheme that is characterized to possess the full cooperative diversity order without the synchronization assumption. We then generalize this family of space-time trellis codes from BPSK to higher order QAM and PSK modulation schemes based on the unified construction proposed by Lu and Kumar. And also, simplified decoding methods are discussed. Simulation results are given to illustrate the performance of the newly proposed codes.
KW - Asynchronous cooperative diversity
KW - MIMO
KW - Sensor networks
KW - Space-time trellis codes
UR - http://www.scopus.com/inward/record.url?scp=85114356487&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2005.1523470
DO - 10.1109/ISIT.2005.1523470
M3 - Conference article
AN - SCOPUS:85114356487
SN - 2157-8095
VL - 2005-January
JO - IEEE International Symposium on Information Theory - Proceedings
JF - IEEE International Symposium on Information Theory - Proceedings
M1 - 1523470
T2 - 2005 IEEE International Symposium on Information Theory, ISIT 05
Y2 - 4 September 2005 through 9 September 2005
ER -