Multi-hop Communication Protocol Optimization for the Linear Wireless Monitoring Network

The lifetime and latency of the railway infrastructure wireless monitoring system are vital to guarantee the stability of the monitoring system and the safety of the railway operation. In this paper, we proposed the multi-hop protocols to optimize the utility of the railway infrastructure wireless monitoring system. The lifetime maximum, latency minimum, and utility maximum models are all designed in this paper. The simulation results show that the complex objective model to maximize the utility of the system is superior to the two single-objective models. The performance in lifetime is almost to the lifetime maximum model and in latency is slightly longer than the total energy consumption minimum model. In the railway system, the two factors are all very important, the utility maximum protocol is more suitable to be used in this field.