Title :
An Equalization-Interference Cancellation Receiver for Multicode CDMA
Author :
Thian, Boon Sim ; Tjhung, Tjeng Thiang ; Wong, Lawrence W C ; Wang, Yuhong
Author_Institution :
Inst. for Infocomm Res.
Abstract :
In this paper, we present a hybrid receiver scheme to overcome the shortcoming of the conventional interference cancellation (IC) receiver, for multiuser multicode CDMA (M-CDMA) systems. In conventional IC receivers, RAKE receiver is used in the first stage to obtain initial data estimation but substantial interference at the output of the RAKE receiver renders the initial data estimation highly inaccurate. Our proposed scheme consists of an equalizer for obtaining initial data estimation, followed by a parallel interference cancellation (PIC) section for enhancing the accuracy of data estimation. Simulation results are presented, which show that our proposed scheme achieves much better BER performance than the RAKE-PIC scheme
Keywords :
code division multiple access; equalisers; error statistics; interference suppression; radio receivers; radiofrequency interference; BER; RAKE receiver; data estimation; equalization-interference cancellation receiver; equalizer; hybrid receiver scheme; interference cancellation; multicode CDMA; multiuser multicode CDMA; parallel interference cancellation; Bit error rate; Downlink; Equalizers; Fading; Interference cancellation; Mobile communication; Multiaccess communication; Multipath channels; Multiple access interference; RAKE receivers;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.254330
