Free-Space Optical (FSO) Satellite Networks Performance Analysis: Transmission Power, Latency, and Outage Probability
Jintao Liang, Aizaz U. Chaudhry, Eylem Erdogan, Halim Yanikomeroglu,, Gunes Karabulut Kurt, Peng Hu, Khaled Ahmed, Stephane Martel

TL;DR
This paper analyzes the tradeoff between transmission power and latency in free-space optical satellite networks, using models based on real constellations to optimize inter-satellite link ranges and assess outage probabilities.
Contribution
It provides a detailed system model for evaluating the impact of LISL range on power and latency, and analyzes outage probabilities due to atmospheric effects in FSOSNs.
Findings
Latency decreases with increased LISL range.
Satellite transmission power increases with increased LISL range.
Optimal LISL range balances power consumption and latency.
Abstract
In free-space optical satellite networks (FSOSNs), satellites can have different laser inter-satellite link (LISL) ranges for connectivity. Greater LISL ranges can reduce network latency of the path but can also result in an increase in transmission power for satellites on the path. Consequently, this tradeoff between satellite transmission power and network latency should be investigated, and in this work we examine it in FSOSNs drawing on the Starlink Phase 1 Version 3 and Kuiper Shell 2 constellations for different LISL ranges and different inter-continental connections. We use appropriate system models for calculating the average satellite transmission power and network latency. The results show that the mean network latency decreases and mean average satellite transmission power increases with an increase in LISL range. For the Toronto--Sydney inter-continental connection in an…
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Taxonomy
TopicsOptical Wireless Communication Technologies · Advanced Optical Network Technologies · Satellite Communication Systems
