Channel Occupancy Times and Handoff Rate for Mobile Computing and PCS Networks
IEEE Transactions on Computers
Handoff in wireless mobile networks
Handbook of wireless networks and mobile computing
Markov Decision Processes: Discrete Stochastic Dynamic Programming
Markov Decision Processes: Discrete Stochastic Dynamic Programming
Advanced Wireless Networks: 4G Technologies
Advanced Wireless Networks: 4G Technologies
Signal threshold adaptation for vertical handoff in heterogeneous wireless networks
Mobile Networks and Applications
Efficient structured policies for admission control in heterogeneous wireless networks
Mobile Networks and Applications
An efficient multi-dimensional handover scheme for next-generation networks
Proceedings of the 3nd ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks
A Location-Based Vertical Handover Algorithm for Limitation of the Ping-Pong Effect
WIMOB '08 Proceedings of the 2008 IEEE International Conference on Wireless & Mobile Computing, Networking & Communication
An Intelligent Seamless Handover Mechanism Based on IEEE 802.21
MMIT '08 Proceedings of the 2008 International Conference on MultiMedia and Information Technology
Next Generation Networks: Perspectives and Potentials
Next Generation Networks: Perspectives and Potentials
IEEE Transactions on Wireless Communications
A Combined Vertical Handover Decision Metric for QoS Enhancement in Next Generation Networks
WIMOB '09 Proceedings of the 2009 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications
Channel Allocation Scheme for Handoff Call Based on Markov Chain with Hysteresis
ICISE '09 Proceedings of the 2009 First IEEE International Conference on Information Science and Engineering
Heterogeneous Wireless Networks: Configuration and Vertical Handoff Management
Wireless Personal Communications: An International Journal
Computer Networks: The International Journal of Computer and Telecommunications Networking
Review: An overview of vertical handover techniques: Algorithms, protocols and tools
Computer Communications
A survey on next generation mobile WiMAX networks: objectives, features and technical challenges
IEEE Communications Surveys & Tutorials
Handoff prioritization and decision schemes in wireless cellular networks: a survey
IEEE Communications Surveys & Tutorials
NGN architecture: generic principles, functional architecture, and implementation
IEEE Communications Magazine
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In this paper we investigate the potentiality and the benefits of a soft Vertical Handover (VHO) mechanism, compared with the traditional hard approach. More specifically, we present an analytical scheme for seamless service continuity in a heterogeneous network environment, modeled by means of a multi-dimension Markov chain. The call blocking probabilities, as well as the soft and hard vertical handover probabilities, are computed for specific networks (i.e., UMTS and WLAN). We propose a soft/hard VHO technique working either as (i) a Mobile Controlled Handover, on the basis of a reward and cost model, which consider the data rate and the bandwidth allocation, or (ii) as a simple Network Controlled Handover scheme, by assuming a probabilistic approach as the handover decision metric. Simulation results validate the benefits of the proposed handover algorithm when operating in soft mode, which outperforms the traditional hard approach in terms of network performance and limitation of unwanted and unnecessary handovers. Finally, the effectiveness of the proposed approach is proven with respect to other single and multi-parameter VHO techniques, by extensive simulations.