TY - GEN
T1 - Multicarrier CDMA multiuser detection algorithm based on belief propagation
AU - Ting, Pangan
AU - Wen, Chao Kai
AU - Chen, Jung Chieh
AU - Hsu, Jen Yuan
AU - Chuang, Wei Ping
PY - 2005
Y1 - 2005
N2 - Recently, several published papers have been drawing attention to multicarrier code division multiple access (MC-CDMA) systems, especially their applications in the field of broad-band wireless communications. In such applications, existing sub-optimal multiuser detectors (MUDs) usually do not achieve acceptable performance. Unfortunately, it is NP-hard to implement an optimum MUD algorithm. In this paper, to make the optimum MUD feasible, we put together a low-complexity iterative MUD algorithm for MC-CDMA systems based on Pearl's belief propagation (BP) scheme. The BP-based MUD algorithm can be implemented in a practical time scale. The analytical dynamic bit-error-rate (BER) performance of the BP-based iterative detector can be traced accurately and its BER in the stationary state is shown to achieve the performance obtained by the optimum MUD algorithm.
AB - Recently, several published papers have been drawing attention to multicarrier code division multiple access (MC-CDMA) systems, especially their applications in the field of broad-band wireless communications. In such applications, existing sub-optimal multiuser detectors (MUDs) usually do not achieve acceptable performance. Unfortunately, it is NP-hard to implement an optimum MUD algorithm. In this paper, to make the optimum MUD feasible, we put together a low-complexity iterative MUD algorithm for MC-CDMA systems based on Pearl's belief propagation (BP) scheme. The BP-based MUD algorithm can be implemented in a practical time scale. The analytical dynamic bit-error-rate (BER) performance of the BP-based iterative detector can be traced accurately and its BER in the stationary state is shown to achieve the performance obtained by the optimum MUD algorithm.
UR - https://www.scopus.com/pages/publications/34047109698
UR - https://www.scopus.com/pages/publications/34047109698#tab=citedBy
M3 - Conference contribution
AN - SCOPUS:34047109698
SN - 3800729091
SN - 9783800729098
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 271
EP - 275
BT - 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
T2 - 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
Y2 - 11 September 2005 through 14 September 2005
ER -