TY - GEN
T1 - Graph-based detector for BLAST architecture
AU - Hu, Jun
AU - Duman, Tolga M.
PY - 2007
Y1 - 2007
N2 - We propose belief propagation (BP) based detection algorithms for the Bell labs layered space-time (BLAST) architectures. We first develop a full complexity BP algorithm, and show that the detector achieves a near optimal performance even when the number of receive antennas is smaller than the number of transmit antennas. We also consider three different extensions that provide a good complexity/performance trade-off. Being soft-input-soft-output in nature, we also argue that the proposed detectors are suitable for use in turbo processing which can further enhance the system performance when there is an outer code. In addition to the simulation results, we also study the convergence behavior of the proposed detectors by exploiting the measure of average mutual information.
AB - We propose belief propagation (BP) based detection algorithms for the Bell labs layered space-time (BLAST) architectures. We first develop a full complexity BP algorithm, and show that the detector achieves a near optimal performance even when the number of receive antennas is smaller than the number of transmit antennas. We also consider three different extensions that provide a good complexity/performance trade-off. Being soft-input-soft-output in nature, we also argue that the proposed detectors are suitable for use in turbo processing which can further enhance the system performance when there is an outer code. In addition to the simulation results, we also study the convergence behavior of the proposed detectors by exploiting the measure of average mutual information.
UR - http://www.scopus.com/inward/record.url?scp=38549142779&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38549142779&partnerID=8YFLogxK
U2 - 10.1109/ICC.2007.173
DO - 10.1109/ICC.2007.173
M3 - Conference contribution
AN - SCOPUS:38549142779
SN - 1424403537
SN - 9781424403530
T3 - IEEE International Conference on Communications
SP - 1018
EP - 1023
BT - 2007 IEEE International Conference on Communications, ICC'07
T2 - 2007 IEEE International Conference on Communications, ICC'07
Y2 - 24 June 2007 through 28 June 2007
ER -