Performance Analysis of Bandwidth Limited Coherent Time Spreading OCDMA System Employing DPSK Format and Turbo Code

摘要：

Differential phase shift keying (DPSK) data format is employed to combat noise in the bandwidth limited coherent time spreading (TS) optical code division multiplexing access (OCDMA) system. In addition, the performance of DPSK-OCDMA system with turbo coding is analysed and simulated. Theoretical results show that performance degradation due to bandwidth limitation could be effectively restrained by the DPSK-OCDMA scheme, and further performance improvement could be achieved by incorporating turbo coding into OCDMA system. It is confirmed that the number of active users is increased from K = 11 to K = 25 in bandwidth limited OCDMA system by employing DPSK format and turbo code for a given BER of 10-6.

关键词： Optical code division multiplexing access (OCDMA) Bandwidth limitation Differential phase shiftkeying (DPSK) Turbo coding.

作者: Xiaogang Chen Xiuhua Yuan

作者单位: College of Science,China Three Gorges University,Yichang,Hubei,443002 China. Wuhan National Laboratory for Optoelectronics (WNLO),Huazhong University of Science and Technology,W

会议类型: 国际会议

会议名称: 2008亚太光通信会议(Asia-Pacific Optical Communications 2008)

会议地点: 杭州

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）