文章基本信息

标题：Performance Evaluation Of BEACON-ENABLED IEEE 802.15.4 Under NS2
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作者：Faiza Charfi ; Mohamed Bouyahi
期刊名称：International Journal of Distributed and Parallel Systems
印刷版ISSN：2229-3957
电子版ISSN：0976-9757
出版年度：2012
卷号：3
期号：2
DOI：10.5121/ijdps.2012.3206
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The increasing demand for real-time applications has made the Quality of Service (Qos) support for wireless sensor networks (WSN) a fairly new research framework. In this paper, we propose an extended model of the Beacon enabled IEEE 802.15.4 including the Guaranteed Time Slot GTS allocation mechanism in the aim to analyze and evaluate network performances. Series of extensive simulations were performed to analyze the impact of the Beacon Order BO and the Superframe Order SO on the network performance based on commonly known metrics. In particular, we examine data packet delivery performance and the throughput for different duty cycle rates. Also, we analyze the impact of the number of nodes on collision probability. Thus, for high number of nodes, collision becomes higher and the reachability begins to decline slightly. We discuss and compare simulation results conducted under various parameter settings to the IEEE 802.11network.
关键词：Wireless Sensor Networks (WSN); Medium Access Control (MAC); IEEE 802.15.4; Superframe Order;(SO); Beacon Order (BO); Guaranteed Time Slot (GTS).