Seamless Handover Method by Channel Switching in IEEE 802.11 Wireless LANs

Youchan JEON  Myeongyu KIM  Sungkuen LEE  Yeunwoong KYUNG  Jinwoo PARK  

Publication
IEICE TRANSACTIONS on Communications   Vol.E95-B   No.1   pp.345-348
Publication Date: 2012/01/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
AP channel switching,  AP manager,  handoff delay,  IEEE802.11,  WLAN,  

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Summary: 
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.