Security is a critical concern in shared spectrum environments, where attacks can degrade service and influence market interactions between competing service providers (SPs). This work analyzes SPs’ strategic security investments against revenue-minimizing attackers in licensed shared bands. We model investment decisions under simultaneous and sequential competition, characterizing the existence and structure of equilibrium outcomes. Our results show that investment cost level, attack uncertainty, and risk aversion significantly impact market stability. Uncertain attacks and over-investment can shape equilibrium strategies and increase losses.
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Market Models of Spectrum Attacks with Shared Spectrum
Security is a critical concern in shared spectrum environments. In additional to degrading service, attacks can influence the market interactions between competing service providers (SPs). This paper investigates these interactions by considering two SPs engaged in Cournot competition while utilizing both proprietary and shared spectrum, with shared spectrum available in either licensed or open-access forms. Additionally, we assume the presence of an attacker whose objective is to deny service to one or more of the shared bands for a fraction of the time, consequently reducing the overall total revenue. We analyze the optimal forms of attacks under different attacker objectives and their repercussions on the resulting market equilibrium. Utilizing these analyses, we compare the impacts of various spectrum sharing approaches (licensed and open access) and differing amounts of spectrum holdings of the two providers.
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- Award ID(s):
- 1908807
- PAR ID:
- 10490465
- Publisher / Repository:
- IEEE
- Date Published:
- ISBN:
- 978-3-903176-55-3
- Page Range / eLocation ID:
- 1 to 8
- Format(s):
- Medium: X
- Location:
- Singapore, Singapore
- Sponsoring Org:
- National Science Foundation
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