Unmanned Aerial Vehicle (UAV) is frequently used in tactical scenarios due to its flexibility, where networking among UAVs is an enabling technology for cooperation. However, dy-namic location changes and jamming attacks in tactical scenarios pose significant challenges to the stability and reliability of UAV networks. Observing that network conditions change frequently and a single protocol does not work well across different network conditions, we propose a MAC protocol switching strategy, MS-MAC, which is driven by the missions and interference, switching among carrier sense multiple access (CSMA) protocol and time division multiple access (TDMA) protocol. Instead of fixing the number of slots in TDMA, we propose a dynamic variant whose time slot number is determined by traffic load. MS-MAC switches between dynamic TDMA and CSMA based on channel status. We implement the protocol on the EXata platform, and simulations verify the effectiveness of the protocol against existing protocols.
Switching MAC Protocols for UAV Networks in Tactical Scenario
2024-06-24
1099494 byte
Conference paper
Electronic Resource
English
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