Method to increase the working frequency of digital carrier synchronization module for high-speed digital coherent optical receivers
作者: Jiamin LiJian YangSheng CuiWenjuan XiaZhixiang LuoChangjian Ke
作者单位: 1Huazhong University of Science and Technology
2National Engineering Laboratory for Next Generation Internet Access System
刊名: Optical Engineering, 2017, Vol.56 (8), pp.086105-086105
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.56.8.086105
关键词: digital coherent optical receiverdigital carrier synchronizationparallel and pipelined architecturephase unwrapping
原始语种摘要: A digital carrier synchronization module with high working frequency is indispensable for high-speed digital coherent optical receivers to recover the transmitted symbols. We proposed a method to increase the working frequency of the digital carrier synchronization (DCS) module based on the commonly used M ’th power algorithms. Parallel architecture can increase the throughput of digital signal processing (DSP) modules for a given working frequency. pipelined architecture (PA) leads to a reduction in the critical path, and thus it can be exploited to increase the throughput of DSP modules by increasing the working frequency. It is demonstrated that in PA the working frequency is not limited by the computation time of the M ’th power subfunction with the highest complexity because it is...
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  • working 开采
  • increase 增加
  • digital 数字的
  • speed 速率
  • module 模数
  • carrier 载体
  • immediately 立即
  • subfunction 子功能
  • feedforward 正反馈
  • critical 临界的