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To gather data of a larger area and improve the capability in the system, vehicles in Vehicular Ad-hoc NETworks (VANETs) are organized into clusters. Moreover, the effectiveness of application in VANET depends on performance of Medium Access Control (MAC) protocol. In addition, cluster-based MAC protocols can avoid or limit channel contention, provide fairness to channel access, increase radio network...
This paper presents binary particle swarm optimization (BPSO) for finding an optimum conflict-free transmission schedule for a broadcast radio network. This is known as Broadcast Scheduling Problem (BSP) and shown as an NP-complete problem in earlier studies. Because of this NP-complete nature, earlier studies used genetic algorithms, mean field annealing, neural networks, factor graph and sum product...
In this paper, implementation results of a surveillance test-bed in Taean airport by ADS-B concepts is described in detail. The surveillance test-bed consists of ADS-B transponders adopting VDL based on STDMA protocol, CDTIs for aircraft pilots, ground vehicle drivers and air traffic controllers. Surveillance functions of ADS-B system such as runway incursion prevention, conflict warning and way-point...
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