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Seamless Handover Method by Channel Switching in IEEE 802.11 Wireless LANs
Youchan JEON Myeongyu KIM Sungkuen LEE Yeunwoong KYUNG Jinwoo PARK
IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
AP channel switching, AP manager, handoff delay, IEEE802.11, WLAN,
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We propose a mobility enhancement method in which APs periodically change their RF channels in a predetermined order that prevents overlap of neighboring APs' channels. Improvement in the throughput is also achieved by manipulating the DCF uplink mode and the Downlink mode. A performance evaluation shows that the proposed scheme is superior to IEEE 802.11 WLAN in handoff delay and throughput.