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Title: Link characteristics estimation for IEEE 802.11 DCF based WLAN
Authors: Xiuchao, W. 
Ananda, A.L. 
Issue Date: 2004
Citation: Xiuchao, W.,Ananda, A.L. (2004). Link characteristics estimation for IEEE 802.11 DCF based WLAN. Proceedings - Conference on Local Computer Networks, LCN : 302-309. ScholarBank@NUS Repository.
Abstract: Knowledge of network path characteristics enables upper layers to improve performance through adaptation protocols which adjust behaviors according to current network path characteristics. As for a mobile node of wireless network, this knowledge is especially valuable because the characteristics of wireless link, which often dominate network path characteristics, change frequently and abruptly due to mobility, fading, and contention among nodes. Due to the dynamics and precious bandwidth of wireless link, the commonly used probing-packet methods are not appropriate for estimating the characteristics of network path with wireless link. In this paper, we propose a new mechanism to estimate link characteristics of IEEE 802.11 DCF based Wireless LAN (WLAN), one of the most popular wireless access networks. Instead of sending probing-packets, mobile node estimates its link characteristics based on wireless link quality and contention status of the whole WLAN. We implement this mechanism and test its accuracy in NS2. © 2004 IEEE.
Source Title: Proceedings - Conference on Local Computer Networks, LCN
Appears in Collections:Staff Publications

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