Performance Analysis of FH-CDMA Wireless Communication System without Bit-Synchronous Assumption

• Main Authors: Chien-Hung Liu, 劉建宏
• Other Authors: Guu-Chang Yang
• Format: Others
• Language: en_US
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/64888084307107963283

碩士 === 國立中興大學 === 電機工程學系 === 93 === The innovations and applications of wireless communication technologies lead to recent rapid developments in the mobile communication and wireless networks. Correspondingly, only more users, faster communication data rate, and more various services can satisfy the future development. By the use of distributing different FH codes to different users, FH-CDMA systems allows more simultaneous users utilize the same frequencies to send the information at the same time. In past research about FH-CDMA system, it usually considered the bit-synchronous. This situation is obviously different from the real operation. In this thesis, we not only analyze the traditional MFSK/FH-CDMA system but also discuss without bit-synchronous assumption. The number of hit between two users by assigning prime codes as FH pattern is more than one hit under bit-asynchronous condition. We derive the equation of the probability of two-hits and the bit error rate. We analyze their performance and compare with the traditional FH-CDMA system.