Title :
A class of zero-padded spreading sequences for MAI cancellation in DS-CDMA systems
Author :
Cha, J.S. ; Song, S.I. ; Lee, S.Y. ; Kyeong, M.G. ; Tsubouchi, K.
Author_Institution :
Dept. ETRI, Adv. Mobile Commun, Taejon, South Korea
fDate :
6/23/1905 12:00:00 AM
Abstract :
We introduce the generation method of the 2- and 4-phase preferred pairs (PPs) with ZCD (zero correlation duration) of (0.5N+1) for a period N. Then, the novel 3- and 5-phase PP that have enlarged ZCD of (0.75N+1) are constructed by using the selected zero padding method to the 2-and 4-phase PP. Using the chip-shift operation, the 3- and 5-phase ZCD sequences that have superior family size to the 2-and 4-phase ZCD sequences are derived
Keywords :
binary sequences; code division multiple access; interference suppression; multiuser channels; radiofrequency interference; spread spectrum communication; 2-phase preferred pairs; 3-phase PP; 4-phase preferred pairs; 5-phase PP; DS-CDMA systems; MAI cancellation; ZCD sequences; binary ZCD sequences; chip-shift operation; code division multiple access; family size; generation method; zero correlation duration; zero-padded spreading sequences; Autocorrelation; Binary sequences; Electronic mail; Interference cancellation; Multiaccess communication; Multiple access interference;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957175
