Abstract
With increasing investment and deployment of high speed trains (HST), a critical demand of high bandwidth and the better user experience under high speed mobility arises. Although, TCP/IP has been studied in a static, walking and lower mobility environment, it can not work well at high speed (>50 m/s) cases. The reason is cellular networks use TCP/IP (eg. Mobile-IP) protocol that consumer node requires to connecting to producer node when the consumer handover to anther node. In this paper, we proposed NDN wireless mesh network architecture for HST networking (NDN-Mesh-T), which combined advantages of WMN and NDN architectures. We attempt to solve the reliability and handoff delay problems, which supports high bandwidth and lower latency Internet access in HST scenario. We proposed direction-aware forwarding to keep the same direction of running train, which further improve reliability and bandwidth. The simulation results show that the proposed scheme can significantly improve the packet loss ratio up to 67% comparing to IP. In addition, the proposed can reduce number of node deployments, hanoff delay and data redundancy.
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