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Title: IEEE 802.11 Hot Spot Load Balance and QoS-Maintained Seamless Roaming
Authors: 蔡子傑
Tsai, Tzu-Chieh
Contributors: 國立政治大學資訊科學系
Keywords: load balance;QoS;802.11
Date: 2003
Issue Date: 2010-05-27 16:51:26 (UTC+8)
Abstract: This paper presents and evaluates a mechanism for the load control with QoS supported in IEEE 802.11b Wireless LANs. Our mechanism named Enhanced Load Balance (ELB) dynamically adapts load distribution over APs to achieve load balance. The ,ELB mechanism balances the load by STAs’ statistical traffic load. This mechanism also performs admission control to avoid congestion. The ELB mechanism maintains QoS by classifying STAs into three classes and control the traffic flow of every STA. The roaming STAs can get enough bandwidth to maintain the QoS in the new AP by the bandwidth reservation mechanism of ELB. ELB can be used on top of the standard 802.11b access mechanism without requiring any modification or additional hardware. The performance of the IEEE 802.11 protocol with orwithout the ELB mechanism is investigated in the paper via simulation and implementation. The results indicate that our mechanism can balance the load effectively and the bandwidth can be fully utilized. Therefore, QoS can also be maintained.
Data Type: conference
Appears in Collections:[資訊科學系] 會議論文

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