The carrier-less phase-retrieval (PR) coherent detection is a potential solution for reducing the hardware complexity of coherent receivers in cost-sensitive applications, such as data-center interconnects. However, due to the lack of theoretical analysis, the optimum PR receiver architecture and its achievable performance have been revealed yet. In this work, we show the injectivity condition and the Cramér-Rao lower bound for the PR receivers. These results would be a useful tool for the system designers to optimize the receiver architectures and establish a fair comparison between them.
No takes yet. Share an insight, caveat, or question.
Yuki Yoshida (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: