Computer Networks: The International Journal of Computer and Telecommunications Networking
An adaptive mobility anchor point selection scheme in Hierarchical Mobile IPv6 networks
Computer Communications
Dynamic hierarchical mobility management strategy for mobile IP networks
IEEE Journal on Selected Areas in Communications
Gateway relocation avoidance-aware network function placement in carrier cloud
Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems
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In the System Architecture Evolution (SAE) study of the nextgeneration mobile network in 3GPP, Serving Gateways (SGWs) and Mobility Management Entities (MMEs) are grouped to form a number of service and pool areas, respectively. While this concept of SGW service areas in the Evolved Packet Core is interesting to limit the administrative scope of SGWs and also provides a means to optimize the routing, the use of fixed/hard area boundaries can result in frequent unnecessary SGW relocations and can severely impact the Quality of Experience (QoE) of users. To avoid the drawback of fix/hard service (or pool) area boundaries, this paper proposes a scheme whereby every SGW can have a flexibly configurable service area, which is defined by a set of LTE (Long Term Evolution) cells or Tracking Areas (TAs). The service area of a SGW defines the LTE area (e.g., cells or TAs) that the SGW can serve. The working of the proposed mechanism is validated via computer simulations and encouraging results are obtained.