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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/70530

    Title: Pre-Register Algorithm for SVC by Fast BSS Transition Wireless Networks
    Authors: Yang, Huei-yu;Li, Ya-chun;Chou, Feng-Yi;Wu, Tin-yu;Lee, Wei-Tsong
    Contributors: 淡江大學電機工程學系
    Date: 2009-08-26
    Issue Date: 2011-10-23 21:23:57 (UTC+8)
    Publisher: IIHMSP
    Abstract: Recently, with the more extensive deployment of Wireless Local Area Networks (WLAN), and the growing population of mobile users, the unstable handover problem in wireless network services receives more and more attention. Since users expect the continuity of services while roaming, IEEE 802 family defines the standard IEEE 802.11r (Fast BSS Transition) to reduce the interrupted time of services to the minimum. Supposing users use IEEE 802.11r to execute the pre-authentication process with all Access Points, there will be too many authenticated messages. Therefore, an IEEE 802.11r based algorithm is proposed to avoid the pre-authentication process with all APs. In order to reduce the pre-register APs, we first of all divide the coverage of the APs into four regions according to the RSSI. Second, to figure out more accurate APs, we dynamically adjust the region. Third, if the mobile device cannot find the AP of each region, we further modify the region. Finally, we pick up an AP to execute the pre-authentication each region. With the four above-mentioned considerations proposed in this algorithm, we are able to make use of roaming more effectively.
    Relation: 2009 Fifth International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2009), pp.1249-1252
    DOI: 10.1109/IIH-MSP.2009.289
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Proceeding

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