DPSK/SCM组合调制在光标记交换中的应用性能评估  

Performance evaluation of a DPSK/SCM combined modulation scheme applying for optical label switching

作　　者：邓大鹏[1] 林初善[1] 赵峰[1] 李洪顺[1] 

机构地区：[1]西安通信学院光通信实验室,西安710106

出　　处：《光通信技术》2007年第6期47-49,共3页Optical Communication Technology

摘　　要：基于光标记交换中的DPSK/SCM组合调制方案,分别仿真了SCM调制灵敏度、副载频和标记速率三个因素对DPSK信号性能的影响,得出副载波最佳调制灵敏度为0.3,最佳副载波频率的大小为净荷速率的一半或与之相等,且标记信号速率越高,净荷的接收性能越差。Based on a combined modulation scheme for optical label switching using DPSK/SCM, respectively stimulate the effects to the DPSK signal performance, caused by the SCM sensitivity, the frequency of subcarrier and the label bit-rate, find out the optimum value for the SCM sensitivity is about 0.3, the optimum value of the frequency of subcarrier is equal to the label bit-rate or half of it, and the higher the label bit-rate is, the worse the performance of detecting the payload signal is.

关 键 词：DPSK/SCM 调制灵敏度 副载波频率 标记速率 

分 类 号：TN929.11[电子电信—通信与信息系统]