Supporting Highly Mobile Users in Cost-Effective Decentralized Mobile Operator Networks
Supporting Highly Mobile Users in Cost-Effective Decentralized Mobile Operator Networks
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DOI：
10.1109/tvt.2014.2299633
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发表时间：
2014-01
影响因子：
6.8
通讯作者：
T. Taleb;Konstantinos Samdanis;A. Ksentini
中科院分区：
文献类型：
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作者：
T. Taleb;Konstantinos Samdanis;A. Ksentini
由于移动数据流量的巨大增长，至少在一定程度上，移动运营商网络的分散化是大势所趋。应进一步推动移动网络功能的虚拟化和实现移动云联网，从而按需以灵活的方式创建移动网络。如果不重新考虑移动性管理方案，移动网络去中心化将不会有效率，特别是对于长途和/或高速移动的用户(例如，车辆和子弹头列车)。为了支持这种高移动性用户，本文介绍了一种基于用户移动性、历史信息和用户活动模式的数据锚网关(GW)重定位方法，以及一种切换管理策略，该策略以最小化移动锚GW重定位的方式选择目标基站或演进节点B(ENB)。通过基于马尔可夫模型的分析和仿真对所提方案的性能进行了评估。取得了令人鼓舞的结果，验证了方案的设计目标。
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.