Single-Photon Counting Receivers for Optical Wireless Communications in Future 6G Networks
Résumé
Optical wireless communication (OWC) offers several complementary advantages to radio-frequency wireless networks such as its massive available spectrum. Hence, it is widely anticipated that OWC will assume a pivotal role in the forth-coming sixth generation wireless communication networks. Although significant progress has been achieved in OWC over the past decades, the outage induced by occasionally low received optical power continues to pose a key limiting factor for its deployment. In this work, we discuss the potential role of single-photon counting (SPC) receivers as a promising solution to overcome this limitation. We present an overview of the applications of SPC-based OWC systems in 6G networks, introduce their major performance-limiting factors, propose a performance-enhancement frame-work to tackle these issues, and identify critical areas of open problems for future research.
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