Analysis and Experimentation over Heterogeneous Wireless Networks
TRIDENTCOM '05 Proceedings of the First International Conference on Testbeds and Research Infrastructures for the DEvelopment of NeTworks and COMmunities
An intelligent handover management system for future generation wireless networks
EURASIP Journal on Wireless Communications and Networking - Intelligent Systems for Future Generation Wireless Networks
LTE: the evolution of mobile broadband
IEEE Communications Magazine
Efficient cell selection algorithm in hierarchical cellular networks: multi-user coordination
IEEE Communications Letters
WiMAX or LTE: Who will Lead the Broadband Mobile Internet?
IT Professional
Optimal Distributed Vertical Handoff Strategies in Vehicular Heterogeneous Networks
IEEE Journal on Selected Areas in Communications
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Cell selection for inter-system handover in heterogeneous networks is one of the key issues in 4G cellular networks to maintain constant or near-constant QoS (Quality of Service) where cells may be overloaded. There exist many proposals in literature on cell selection methods for intra-system handovers and inter-system handovers. We propose an intelligent cell selection scheme for inter-system handovers in heterogeneous networks that satisfies user requirements as well as system requirements. The proposed scheme uses uncertain parameters such as user system preference, communication cost, mobile speed, transmission delay, packet loss, and cell loads in the decision process utilizing the aggregation functions in fuzzy set theory. Contrary to many existing schemes which consider only either system parameters or user requirements, the proposed scheme considers both. The proposed scheme hierarchically analyzes the relative value of cell selection parameters based on the current state of heterogeneous networks, the speed of mobile terminals, and the change in QoS. Then, it focuses on the adaptation of relative importance values for each cell selection parameter. Computer simulation results show that our proposed scheme provides systems and users with much better performance compared to existing schemes.