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Packet aggregation method for factory automation oriented TDMA (Time Division Multiple Access) wireless network
Authors
于海斌
张晓玲
+3 more
杨雨沱
林俊如
梁炜
Publication date
26 June 2013
Publisher
Abstract
本发明涉及工业无线网络技术,具体地说是一种面向工厂自动化TDMA无线网络的包聚合方法。将工厂自动化无线网络的各类节点搭建成星型拓扑结构;AP为网络中的节点分配通信所需时隙;基于上述拓扑结构和时隙分配结果,如果缓存空间足够,AP将需要发送给多个节点的包按照聚合包格式封装成一个包;节点收到来自AP的聚合包后,判断该节点是否为该聚合包的目的节点,如果是则接收并解聚该包,否则丢弃该包;收到聚合包的节点向AP回复ACK响应,AP向未发来ACK的节点重传聚合包;AP根据ACK响应的结果,决定重传。本发明充分利用工厂自动化应用中确认帧长度短的特点,在保证数据无损的前提下,减少网络中包的数量和包头开销,提高包的有效载荷,优化面向工厂自动化的无线网络的性能
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Last time updated on 29/11/2016