Title :
Parallel interference cancellation receiver with maximum likelihood frequency offset estimation for uplink MC-CDMA system
Author :
Songthanasak, J. ; Kunaruttanapruk, S. ; Tangsanggiumvisai, N. ; Jitapunkul, S.
Author_Institution :
Dept. of Electr. Eng., Chulalongkorn Univ., Bangkok, Thailand
Abstract :
We proposed a technique that jointly corrects the frequency offset and suppresses the multiple access interference (MAI). Since the value of frequency offset of each user signal is usually not the same in the uplink, therefore; we need to separate the desired user signal from the mixed signal in order to be able to estimate the frequency offset. We use the parallel interference cancellation technique for the signal separation. Performance of our purposed scheme in terms of BER is comparable to conventional PIC and matched filter.
Keywords :
code division multiple access; error statistics; interference suppression; matched filters; maximum likelihood estimation; radio links; radio receivers; radiofrequency interference; BER; bit error rate; matched filter; maximum likelihood frequency offset estimation; mixed signal; multicarrier code division multiple access; multiple access interference; parallel interference cancellation receiver; signal separation; uplink MC-CDMA system; Binary phase shift keying; Digital signal processing; Frequency estimation; Interference cancellation; Maximum likelihood estimation; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; Source separation; Transmitters;
Conference_Titel :
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN :
0-7803-8292-7
DOI :
10.1109/ISSPIT.2003.1341139
