Supporting Highly Mobile Users in Cost-Effective Decentralized Mobile Operator Networks
- 10 January 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Vehicular Technology
- Vol. 63 (7), 3381-3396
- https://doi.org/10.1109/tvt.2014.2299633
Abstract
Due to the tremendous increase in mobile data traffic, there is a general trend toward the decentralization of mobile operator networks, at least to a certain extent. This shall be further facilitated with the virtualization of mobile network functions and the enabling of mobile cloud networking, whereby mobile networks are created on demand and in a flexible manner. Mobile network decentralization will not be efficient without rethinking mobility management schemes, particularly for users moving for a long distance and/or at a high speed (e.g., vehicles and bullet trains). To support such highly mobile users, this paper introduces: 1) a data anchor gateway (GW) relocation method based on user mobility, history information, and user activity patterns, and 2) a handover management policy that selects a target base station or evolved Node B (eNB) in a way to minimize mobility anchor GW relocation. The performance of the proposed schemes is evaluated via Markov model-based analysis and through simulations. Encouraging results are obtained, validating the design objectives of the scheme.Keywords
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