Fuzzy multiple attribute decision making: a review and new preference elicitation techniques
Fuzzy Sets and Systems - Special issue on fuzzy multiple criteria decision making
On a canonical representation of fuzzy numbers
Fuzzy Sets and Systems
A utility-based power-control scheme in wireless cellular systems
IEEE/ACM Transactions on Networking (TON)
A fuzzy closeness approach to fuzzy multi-attribute decision making
Fuzzy Optimization and Decision Making
An overview of vertical handover decision strategies in heterogeneous wireless networks
Computer Communications
A Methodology for Evaluating Vertical Handoff Decision Mechanisms
ICN '08 Proceedings of the Seventh International Conference on Networking
Proceedings of the 6th ACM international symposium on Mobility management and wireless access
Computer Networks: The International Journal of Computer and Telecommunications Networking
Energy-aware network selection using traffic estimation
Proceedings of the 1st ACM workshop on Mobile internet through cellular networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Energy savings for wireless terminals through smart vertical handover
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Computer Networks: The International Journal of Computer and Telecommunications Networking
IEEE Wireless Communications
Fundamental design issues for the future Internet
IEEE Journal on Selected Areas in Communications
Automated network selection in a heterogeneous wireless network environment
IEEE Network: The Magazine of Global Internetworking
A hybrid fuzzy group decision support framework for advanced-technology prioritization at NASA
Expert Systems with Applications: An International Journal
Hierarchical multi-criteria risk-benefit analysis in fuzzy environment
Applied Soft Computing
An approach to generalization of fuzzy TOPSIS method
Information Sciences: an International Journal
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Mobile terminals in 4G heterogeneous wireless networks continuously undergo horizontal and vertical handovers. In order for a mobile terminal to be connected to a network in the best possible way in terms of QoS performance and energy consumption, access network selection as the main decision within the handover process is obviously crucial. This paper presents a novel method that takes into account user preferences, network conditions, QoS and energy consumption requirements in order to select the optimal network which achieves the best balance between performance and energy consumption. The proposed network selection method incorporates the use of parameterized utility functions in order to model diverse QoS elasticities of different applications, and adopts different energy consumption metrics for real-time and non-real-time applications. User preferences are easily configured for different application and situation contexts through the use of linguistic assessments and their representation as triangular fuzzy numbers. The aggregation of multiple criteria for the calculation of the overall rating of the networks is performed through the use of the Fuzzy Set Representation TOPSIS method that resolves the issue of inconsistency related to conflicting decision criteria and is modified through the use of the employed utility functions for the elimination of the ranking abnormality problem. Finally, simulations are conducted in order to demonstrate how the proposed method would work and confirm its suitability and effectiveness.