00000cab a22000003a 4500 UP-99796217609500203 Buklod 20231007234336.0 m |o d | ta 101008s xx d | ||r ||||| || DENGII eng Seung Joon Lee Bit-error probabilities of multicode direct-sequence spread-spectrum multiple-access systems. pp. 31-34 Many techniques for calculating bit-error probabilities (BEPs) of direct-sequence spread-spectrum multiple-access systems (DS-SSMA) have been reported. Among them are the following three techniques: (1) the standard Gaussian approximation; (2) the improved Gaussian approximation; (3) and the simplified improved Gaussian approximation. We extend these techniques to derive the BEPs of multicode DS-SSMA systems. We assess the three techniques by comparing their results with the result of computer simulation Bit-error probabilities. Computer simulation. Direct-sequence spread-spectrum multiple-access. Improved Gaussian approximation. Multicode DS-SSMA systems. Simplified improved Gaussian approximation. Standard Gaussian approximation. IEEE Transactions on communications 49, 1 (2001). FO UPD DENG-II Article