Strategies for Dense Optical CDMA Communication Systems  

作　　者：WANGYu-bao LINJin-tong 

机构地区：[1]BeijingUniversityofPostsandTelecommunications,Beijing100876,P.R.China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2005年第1期91-94,共4页中国邮电高校学报（英文版）

摘　　要：In this paper, we have formulated a strategy that the limited available codesequences in pure Direct-Sequence (DS) or Frequency-Hopping (FH) system can be reused to realizedense optical CDMA: the strategy of novel hybrid DS/FH system. In which, the case that there are nusers employing the same FH pattern but different DS code patterns is considered. On the conditionthat the impact of channel noises is neglected, the upper bound probability of error is evaluatedbased on the stationary random process theory. The results shout that the hybrid system is suitablefor Dense Optical CDMA (DOCDMA) communication. Moreover, the problems such as the link-impairment,dispersion of group velocity, etc. in the pure (DS or FH) system can be solved effectively.In this paper, we have formulated a strategy that the limited available codesequences in pure Direct-Sequence (DS) or Frequency-Hopping (FH) system can be reused to realizedense optical CDMA: the strategy of novel hybrid DS/FH system. In which, the case that there are nusers employing the same FH pattern but different DS code patterns is considered. On the conditionthat the impact of channel noises is neglected, the upper bound probability of error is evaluatedbased on the stationary random process theory. The results shout that the hybrid system is suitablefor Dense Optical CDMA (DOCDMA) communication. Moreover, the problems such as the link-impairment,dispersion of group velocity, etc. in the pure (DS or FH) system can be solved effectively.

关 键 词：DOCDMA hybrid (DS/FH) system DS FH stationary random process probabilityof error 

分 类 号：TN929.533[电子电信—通信与信息系统]