A Unified Stochastic Model of Handover Measurement in Mobile Networks

• Published in: IEEE/ACM transactions on networking Vol. 22; no. 5; pp. 1559 - 1576
• Main Authors: Nguyen, Van Minh, Chung Shue Chen, Thomas, Laurent
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.10.2014; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Base stations; Closed-form solutions; Dealing; Exact solutions; Failure; Handover; Handover measurement; level crossing; Level crossings; Long Term Evolution; Mobile communication; Mobile computing; mobility management; Network analysis; Networks; Poisson point process; stochastic modeling; Stochastic processes; Stochasticity; System dynamics
• ISSN: 1063-6692; 1558-2566
• DOI: 10.1109/TNET.2013.2283577

Handover measurement is responsible for finding a handover target and directly decides the performance of mobility management. It is governed by a complex combination of parameters dealing with multicell scenarios and system dynamics. A network design has to offer an appropriate handover measurement procedure in such a multiconstraint problem. This paper proposes a unified framework for the network analysis and optimization. The exposition focuses on the stochastic modeling and addresses its key probabilistic events, namely: suitable handover target found; service failure; handover measurement triggering; and handover measurement withdrawal. We derive their closed-form expressions and provide a generalized setup for the analysis of handover measurement failure and target cell quality by the best signal quality and level crossing properties. Finally, we show its application and effectiveness in today's 3GPP-LTE cellular networks.