Aiming at the problems of channel conflict and waste of idle time slots caused by slow network convergence and incom-plete topology table,a multi-hop time division multiple access protocol was proposed to improve node time slot utilization and network reliability.Three new mechanisms were proposed in the protocol.The fast convergence mechanism of the time slot request period was used to speed up the convergence of the time slot request period.The fair reuse mechanism of idle time slots was used to eliminate the collision problem of central node scheduling time slots and improve the utilization of idle time slots.The one-hop neighbor multi-level scheduling mechanism was used to reduce the delay of data retransmission.The simulation results show that the performance of the proposed protocol is better than that of the existing protocols in terms of time slot request period convergence time,average data transmission delay and data transmission success rate.
关键词
无人机自组网/媒体接入控制/时分多址接入/复用率/并行调度/网关节点/位置信息
Key words
UAV Ad Hoc network/medium access control/time division multiple access/reuse rate/concurrent scheduling/gateway nodes/position information
维普
万方数据