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首页> 外文期刊>International journal of computer science and network security >A Two Level TDMA Scheduling Protocol with Intra-cluster Coverage for Large Scale Wireless Sensor Network
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A Two Level TDMA Scheduling Protocol with Intra-cluster Coverage for Large Scale Wireless Sensor Network

机译：大规模无线传感器网络的集群内覆盖的二级TDMA调度协议

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One of the key problem for Wireless Sensor Network (WSN) is the design of Medium Access Control(MAC) protocol, which medium access is the major consumer of sensor energy. TDMA-based MAC protocol is inherently collision free, and can rule out idle listening since nodes know when to transmit. Cluster-based TDMA protocol is more scalable than traditional TDMA protocol, but it introduces inter-cluster interference for which FDMA and CDMA are not good solutions due to their hardware complexity and high cost. In this paper, we present TLTS, a Two Lever TDMA Scheduling protocol, in which the first scheduling ensures that neighboring clusters collecting their member’s data during different frames in order to avoid inter-cluster interference and the second scheduling schedules members of cluster sending their data to their respectively cluster heads during different slots to avoid intra-cluster interference. Simulation results show that TLTS performs better than HEED when node density turns higher. TLTS is more practical than HEED which uses CDMA code to avoid inter-cluster interference for deploying large scale WSN.
机译：无线传感器网络（WSN）的关键问题之一是介质访问控制（MAC）协议的设计，该介质访问是传感器能量的主要消耗者。基于TDMA的MAC协议本质上是无冲突的，并且由于节点知道何时传输，因此可以排除空闲侦听。基于群集的TDMA协议比传统的TDMA协议具有更高的可扩展性，但是它引入了群集间干扰，由于FDMA和CDMA的硬件复杂性和高成本，它们之间并不是很好的解决方案。在本文中，我们提出了TLTS（两杠杆TDMA调度协议），其中第一调度确保相邻集群在不同帧期间收集其成员数据，以避免集群间干扰，而第二调度则调度集群成员发送其数据在不同的时隙期间将它们分别放置在各自的簇头上，以避免簇内干扰。仿真结果表明，当节点密度变高时，TLTS的性能要优于HEED。 TLTS比HEED更为实用，后者使用CDMA代码来避免在部署大规模WSN时发生集群间干扰。

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