Comparisons Between Different Concatenated Codes Impact on Performance of Optical CDMA

摘要：

In this paper, a method using alterableconcatenated code to pre-encode is presented to reduce theimpact of system impairment and multiple access interference(MAI) in optical code division multiple access (OCDMA)system, and comprehensive comparisons between differentconcatenated code type and forward error correcting (FEC)scheme are studied by simulation. In the scheme, we applyconcatenated coding to the embedded modulation scheme, andoptical orthogonal code (OOC) is employed as addresssequence code, an avalanche photodiode (APD) is selected asthe system receiver. From numerical results, we can show thatthe proposed system has good performance at a BER of 10 -9with a gain of 6.4 dB improvement achieved using theconcatenated code as the pre-code.

作者: Chongfu Zhang Kun Qiu

作者单位: Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks, University of Electronic Science and Technology of China, Chengdu, Sichuan P.R.China

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）