TY - GEN
T1 - Iterative channel estimation in the multiuser pilot-assisted CDMA system
AU - Li, Anxin
AU - Wang, Mingshu
AU - Li, Xiangming
AU - Kayama, Hidetoshi
PY - 2009
Y1 - 2009
N2 - A novel Joint Channel estimation and Partial Parallel Interference Cancellation (JCPPIC) receiver is proposed in the up-link pilot-assisted CDMA (code division multiple access system), where the transmitted pilot symbols are followed by information data symbols in each time slot of each user. In the JCPPIC receiver, the joint iterative structure is utilized to deal with the inaccurate reception problem in the pilot part caused by multiple access interference (MAI). In the proposed iterative scheme, not only the soft-out decision but also the channel estimations are updated in each iteration by partially combining with the former stage's counterparts. In addition, an adaptive piecewise polynomial interpolation (APPI) is applied into the receiver as the estimation method. Simulation results show that both JCPPIC and APPI can outperform their contrast methods.
AB - A novel Joint Channel estimation and Partial Parallel Interference Cancellation (JCPPIC) receiver is proposed in the up-link pilot-assisted CDMA (code division multiple access system), where the transmitted pilot symbols are followed by information data symbols in each time slot of each user. In the JCPPIC receiver, the joint iterative structure is utilized to deal with the inaccurate reception problem in the pilot part caused by multiple access interference (MAI). In the proposed iterative scheme, not only the soft-out decision but also the channel estimations are updated in each iteration by partially combining with the former stage's counterparts. In addition, an adaptive piecewise polynomial interpolation (APPI) is applied into the receiver as the estimation method. Simulation results show that both JCPPIC and APPI can outperform their contrast methods.
KW - Channel estimation
KW - Interference cancellation
KW - Iterative detection
UR - http://www.scopus.com/inward/record.url?scp=74549207421&partnerID=8YFLogxK
U2 - 10.1109/ICCOMTA.2009.5349145
DO - 10.1109/ICCOMTA.2009.5349145
M3 - Conference contribution
AN - SCOPUS:74549207421
SN - 9781424448203
T3 - Proceedings of 2009 IEEE International Conference on Communications Technology and Applications, IEEE ICCTA2009
SP - 535
EP - 539
BT - Proceedings of 2009 IEEE International Conference on Communications Technology and Applications, IEEE ICCTA2009
T2 - 2009 IEEE International Conference on Communications Technology and Applications, IEEE ICCTA2009
Y2 - 16 October 2009 through 18 October 2009
ER -