Title :
Code-shift division multiple access for cellular mobile
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
Abstract :
This paper presents a new scheme to treat the multiple access interference (MAI) problem in CDMA systems. A cyclic prefix technique is introduced to confine the intra-cell MAI in a multipath environment to a small dimension so that it can be resolved by a common equalizer. The proposed scheme combines some advantages of TDMA and CDMA, namely, same-cell-user interference avoidance and other-cell-user interference diversity. Its receiver complexity is considerably lower than other interference cancellation methods
Keywords :
binary sequences; cellular radio; code division multiple access; cyclic codes; diversity reception; equalisers; interference suppression; land mobile radio; multipath channels; radio receivers; radiofrequency interference; spread spectrum communication; CDMA systems; TDMA; binary spreading sequences; cellular mobile radio; code shift division multiple access; cyclic prefix technique; cyclic property; equalizer; interference cancellation methods; intracell MAI; multipath environment; multiple access interference; other cell user interference diversity; receiver complexity; same cell user interference; spreading codes; Binary codes; Equalizers; Equations; Interference cancellation; Mobile communication; Multiaccess communication; Multiple access interference; OFDM; Propagation delay; Time division multiple access;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.596384
