This paper presents and analyzes a point-to-multi-point (P2MP) network that uses a number of free-space optical (FSO) links for data transmission from the central node to the different remote nodes. A common backup radio-frequency (RF) link is used by the central node for data transmission to any remote node in case of the failure of any one of FSO links. We develop a cross-layer Markov chain model to study the throughput from central node to a tagged remote node. Numerical examples are presented to compare the performance of the proposed P2MP hybrid FSO/RF network with that of a P2MP FSO-only network and show that the P2MP Hybrid FSO/RF network achieves considerable performance improvement over the P2MP FSO-only network.
Rakia T, Gebali F, Yang H-C, Alouini M-S (2017) Throughput analysis of point-to-multi-point hybric FSO/RF network. 2017 IEEE International Conference on Communications (ICC). Available: http://dx.doi.org/10.1109/icc.2017.7996688.