The simulation results show that the proposed protocol can greatly improve multihop transmission efficiency, and achieve higher end-to-end channel utilization, lower average end-to-end message delay and less average message dropping rate. 仿真结果表明,UPMA协议显著提高了多跳群间的业务传输效率,可以提供较高的端到端信道利用率、较低的端到端平均消息时延和较小的平均消息丢弃率。