the hierarchical hub location problem is encountered three-level network that is applied in production-distribution system, education system, emergency medical services, telecommunication network, etc. this paper addresses the hierarchical hub covering problem with single assignment accounting for mandatory dispersion of central hubs restriction as a special case. this formulation with incorpor...

Currently telecommunication networks consist of heterogeneous networks, therefore controlling and managing the traffic in these networks will be complex tasks and difficult. Network management activities for these diverse networks require gathering and analyzing huge amount of data from the network. Then based on the activities involved in the network, decisions must be made at different times,...

Nowadays, mobile users can switch between different available networks, for example, nearby WiFi networks or their standard mobile operator network. Soon it will be extended to other operators. However, unless telecommunication operators can directly benefit from allowing a user to switch to another operator, operators have an incentive to keep their network quality of service confidential to a...

A telecommunication or computer network today consist of a number of network elements (NEs) manufactured by different vendors. NEs differ significantly since classes if elements are tailored to provide specific services. Interconnecting networks is important for network providers to make them capable of offering the required level of service to their users/customers. The total number of NEs com...

New open service architectures are now emerging to ease service construction, management, testing, deployment, and operation, and to hide from the service designer the heterogeneity of the underlying technologies and the complexities introduced by distribution. These architectures should provide all the functionalities for call and connection management, and support management functional areas....

Powerline communications (PLC)-based smart meter deployments are now a reality in many regions of the world. Although PLC elements are generally incorporated in smart meters and data concentrators, the underlying PLC network allows the integration of other smart grid services directly over it. The remote control capabilities that automation programs need and are today deployed over their medium...