Performance Evaluation of Wireless Multihop Ad Hoc Networks Using IEEE 802.11 DCF Protocol

南華大學機構典藏系統 > 科技學院 > 資訊工程學系 > 期刊論文 > Item 987654321/25091

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题名:	Performance Evaluation of Wireless Multihop Ad Hoc Networks Using IEEE 802.11 DCF Protocol
作者:	吳建民;Wu, Chien-Min;Hou, Ting-Chao;Chan, Ming-Chieh
貢獻者:	資訊工程學系
关键词:	hop-put;goodput;multihop;IEEE 802.11;DCF
日期:	2003-10
上传时间:	2017-07-19 15:54:36 (UTC+8)
摘要:	There has been a growing interest in multihop wireless ad hoc networks in recent years. Previous studies have shown that, in a wireless multihop network using the slotted ALOHA as the medium access control mechanism, the maximum throughput can be achieved if the number of neighbors is six to eight. We show that, when using the IEEE 802.11 DCF protocol in a wireless ad hoc network, the maximum end-to-end goodput is achieved when all nodes are within transmission range of each other. The main reason is that the channel spatial reuse factor gained from the multihop network does not match the increase in additional transmission hops that a packet needs to travel in a multihop network. For a multihop network, its MAC frame delivery capacity is approximately fixed at a value dependent on its spatial reuse factor. If the offered load increases, less capacity will be spent on delivering packets that eventually reach their destinations and hence resulting in lower end-to-end goodput.
關聯:	IEICE TRANSACTIONS on Communications vol. E86-B, no. 10 pp.3004-3012
显示于类别:	[資訊工程學系] 期刊論文

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