Game-Theoretic Spectrum Trading in RF Relay-Assisted Free-Space Optical Communications
Shenjie Huang, Vahid Shah-Mansouri, Majid Safari

TL;DR
This paper introduces a game-theoretic hybrid RF/FSO system that dynamically trades spectrum to improve link capacity and availability during adverse weather, leveraging market equilibrium pricing and RF node diversity.
Contribution
It presents a novel spectrum trading framework for RF/FSO links using game theory, enhancing system performance and robustness under weather impairments.
Findings
Significant capacity improvement with low-traffic RF nodes.
Enhanced link availability during adverse weather conditions.
Diversity benefits increase with more RF nodes involved.
Abstract
This work proposes a novel hybrid RF/FSO system based on a game theoretic spectrum trading process. It is assumed that no RF spectrum is preallocated to the FSO link and only when the link availability is severely impaired by the infrequent adverse weather conditions, i.e. fog, etc., the source can borrow a portion of licensed RF spectrum from one of the surrounding RF nodes. Using the leased spectrum, the source establishes a dual-hop RF/FSO hybrid link to maintain its throughout to the destination. The proposed system is considered to be both spectrum- and power-efficient. A market-equilibrium-based pricing process is proposed for the spectrum trading between the source and RF nodes. Through extensive performance analysis, it is demonstrated that the proposed scheme can significantly improve the average capacity of the system, especially when the surrounding RF nodes are with low…
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Taxonomy
TopicsOptical Wireless Communication Technologies · Satellite Communication Systems · Advanced Photonic Communication Systems
