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In a WLAN-cellular integrated network scenario, the most important point of consideration is the vertical handoff strategy applied for WLAN admission control. The admission control has previously been based on the parameters like congestion level in WLAN network. The authors propose a novel approach for handoff to WLAN by using connectivity graph data from online social networking services. Stronger social ties with other users advocate a higher probability of admission to WLAN. The main benefit of proposed handover strategy is diminution in global social network traffic. Simulation results prove the validity of their proposed approach against conventional methods.
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