期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2018
卷号：96
期号：3
页码：732
出版社：Journal of Theoretical and Applied
摘要：Wireless sensors network (WSN) has emerged as one of the most common and widely spread wireless networks and is widely deployed in different fields and environments. Topology control algorithms aim to conserve energy and improve network capacity by choosing the right transmission power and neighbors so that the network is connected and has the desired properties. In WSN, topology nodes located away from sink node send the data of their messages over different long paths, which require higher amounts of energy than the near sink nodes. On the other hand, if any parent node in the topology fails due to technical error or energy depletion, nodes that send data over this failed node consume more energy and there is higher data loss due to selecting higher cost paths or failing to find an alternative one. In this paper, an energy-aware and fault tolerance topology control has been proposed which can built topology to minimize energy consumption and rebuild the affected parts of network topology in the case of parent nodes failure. WSN topology was built to minimize the maximum load of each topology node which can minimize power consumption and maximize the network lifetime. On the other hand, in the fault tolerance phase, the proposed mechanism monitored WSN nodes and in the case of node failure, the affected part of network topology was rebuilt and it can resume data collection immediately. Results showed that the proposed mechanism reduced the maximum load up to 35% compared to the AODV scenario. However, Packet delivery ratio and network throughput were increased up to 44% compared to energy based without the failure tolerance topology control mechanism in the case of node failure.
