Premium
Optical time‐spreading/frequency‐hopping differential OOK–CDMA system
Author(s) -
Wan Sheng Peng,
Hu Yu
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1104
Subject(s) - frequency hopping spread spectrum , electronic engineering , code division multiple access , time hopping , spread spectrum , interference (communication) , computer science , detector , noise (video) , telecommunications , electrical engineering , physics , engineering , channel (broadcasting) , artificial intelligence , pulse amplitude modulation , pulse (music) , image (mathematics)
A new optical time‐spreading/frequency‐hopping differential CDMA (TS/FH CDMA) system is proposed in this paper. It uses new codes called prime/OOC codes as address codes. Fast optical frequency hopping and large capacity can be implemented with the system. By assigning two orthogonal codes for one user, and using these two codes to encode 1 and 0, respectively, the receiver can use differential detection. If they are balanced well between the 1‐branch and 0‐branch, the proposed system can effectively abate multiaccess interference (MAI), background noise, detector noise such as dark current, leakage current, and thermal noise, etc. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 125–128, 2001.