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基于有效竞争预约接入、无冲突轮询传输的思想 ,提出了支持节点移动性和多跳网络结构的UPMA(Us er dependentPerfect schedulingMultipleAccess )协议 .其指导思想是仅有发送分组的节点才竞争接入使用信道资源 ,无业务发送的节点将立即被取消占用信道的资格 ,因此它极大地提高了信道的使用效率 ;同时 ,提出了一种冲突避免和分解协议来保证节点能快速接入信道 ;最后 ,以星型拓扑结构的网络为例考察了它对Internet数据业务的支持性能 ,并且给出了相关的结论 .
Based on the idea of efficient contention reservation and collision-free polling transmission, the UPMA (Us er-dependentPerfect schedulingMultipleAccess) protocol is proposed to support node mobility and multi-hop network structure.The idea is that only nodes that send packets compete for access Using channel resources, nodes without service sending will be immediately disqualified from occupying the channel, so it greatly improves channel usage efficiency. At the same time, a collision avoidance and resolution protocol is proposed to ensure that nodes can access the channel quickly. Finally, Taking the network of star topology as an example, the paper investigates its supportive performance on Internet data services and gives the relevant conclusions.