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Supporting WiFi QoS with Priority-aware WiFi Handoff

Because WiFi technology becomes more popular and mobile users want continuous Internet connection through WiFi, WiFi handoff technology becomes an important issue. Also high traffic users may want high quality of WiFi connections. In this paper, we present a priority aware WiFi handoff to support WiFi QoS; the bandwidth of high priority users can be ensured by forceful handoff of low priority users. Through NS2 based simulations, we evaluate the impact of priority aware WiFi handoff to ensure QoS.