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In this paper, an adaptive resource management scheme for hybrid WWAN/WLAN is proposed. Based on proposed joint velocity and Average Received Power (ARP) estimation algorithms, a novel Vertical HandOff (VHO) for efficient load balancing in multitier network is developed. Simulation results show that proposed scheme achieves significant improvements over conventional schemes. Future wireless communication systems can be visualized as the integration of different Radio Access Network (RAN) technologies, to provide always best connected. Heterogeneous Wireless Networks (HWN) will give the service provider, a chance to provide sufficient capacity, needed to support the temporally and spatially fluctuating traffic demands generated by mobile users.
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