Code-shift division multiple access for cellular mobile
Li Ping · 2002
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.