Handoff Management in Wireless Communication-Based Train Control Systems
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Communication-based train control (CBTC) system is an automated control system for railways that ensures the safe operation of rail vehicles using wireless data communications. It can maximize the utilization of railway network infrastructure and enhance the level of safety and service offered to customers. The train-ground communication system is one of the key subsystems of CBTC. A seamless handoff scheme based on SCTP and IEEE 802.11p is proposed to provide high link availability in CBTC systems. Stochastic semi-Markov decision process (SMDP) has been successfully used to solve finance and admission control problems, among others. This article focuses on the application of SMDP to the handoff decision problem in CBTC systems. Maximizing the SCTP throughput and minimizing the handoff latency are the objectives in the handoff decision phase.
Communications-based train control (CBTC) systems is an automated train control...
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