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Incremental Channel Scan Scheme based on Neighbor Channel Information in IEEE 802.11 Wireless LANs
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 Title & Authors
Incremental Channel Scan Scheme based on Neighbor Channel Information in IEEE 802.11 Wireless LANs
Huh, Nam Chul; Kim, Sunmyeng;
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 Abstract
Handoff is a critical issue for seamless roaming in IEEE 802.11-based wireless networks. In order to provide real-time services, handoff mechanism must be provided. However, the IEEE 802.11 standard handoff is not appropriate to provide the services, because it is based on the full-scanning approach which spends too much time searching Access Point (AP). In this paper, we propose a new scheme, which can reduce the scanning latency. A station performs full-scanning operation for finding APs when it enters wireless networks for the first time. The station sends the scanned channel information to AP. AP maintains the neighbor channel table based on the information received from stations. A station performs the partial-scanning by using the table. Therefore, the proposed scheme can reduce the scanning latency.
 Keywords
Handoff;WLAN;Channel Scan;Neighbor Channel;Scanning Latency;
 Language
Korean
 Cited by
 References
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