TY - JOUR T1 - Precoded random spreading multiple access system in AWGN channels. JF - IEEE Transactions on wireless communications A1 - Jang, W.M LA - English UL - https://tuklas.up.edu.ph/Record/UP-99796217609625030 AB - In this paper, we compare the asymptotic performance of the decorrelator approaches to multiuser detection in code-division multiple-access (CDMA). Precoding is the decorrelation which is performed at a common transmitter such as the base station or satellite that allows single-user detection at the handset receiver. Receiver-based decorrelator decorrelates multiple user signals at the receiver side. We analyze the performance of the aforementioned decorrelation approaches with time-varying random spreading sequences in additive white Gaussian noise channels. The results demonstrate that the performance of precoding and that of receiver-based decorrelator are asymptotically equivalent. KW - AWGN channels. KW - CDMA. KW - Additive white Gaussian noise channels. KW - Base station. KW - Code division multiple access. KW - Decorrelator approach. KW - Handset receiver. KW - Multiuser detection. KW - Precoded random spreading multiple access system. KW - Satellite. KW - Single-user detection. KW - Time-varying random spreading sequences. KW - Transmitter. ER -