摘要
提出一种将重叠频域均衡算法和正交训练序列相结合的方法,以提高偏振复用单载波频域均衡系统的带宽利用率。通过采用重叠频域均衡方法,发送端避免添加循环前缀冗余信息,提高了系统性能。采用正交训练序列,减少序列长度,提高了带宽利用率。仿真研究了224Gb/s PDM-SCFDE的系统性能,并对算法的不同重叠长度和系统性能的关系进行了分析。
In the paper, a scheme of joint overlap frequency-domain equalization （OFDE） and orthogonal se- quences is proposed to improve bandwidth efficient for PDM-SCFDE system. At the transmitter, cycle prefix （CP） is removed by using OFDE method, thus, it can improve system performance. In addition, training se- quences are shorter to improve bandwidth efficient by using orthogonal sequences. Meanwhile, after simulate a 224Gb/s PDM-SCFDE system, the system performance under different overlap length of OFDE is analysis and discussed.
出处
《光通信技术》
北大核心
2016年第8期44-47,共4页
Optical Communication Technology
基金
国家自然科学基金(批准号:61307087
61377079)资助
教育部留学回国人员科研启动基金项目(教外司留(2015)311号)资助
