Ivaylo Atanasov

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The paper is dedicated to mechanisms for open access to resource management in the Internet Protocol (IP) multimedia networks. First we present the concept of IP Multimedia Subsystem (IMS) and explain the IMS functional architecture, principles of quality of service management and service control in IMS. Then we describe the idea behind the opening of(More)
In this paper we present an analysis on Policy and Charging Control (PCC) functions in all IP-based multimedia networks and identify the required functionality for quality of service (QoS) monitoring. The support of "Application-driven Quality of Service" (ADQ) Parlay X Web Service to reporting function in PCC is evaluated and improvements of ADQ interfaces(More)
The paper presents an approach to detection of service interaction. Service interaction manifests itself as a function of services which is neither exactly the sum of every service nor behaves as expected. In Customized Application for Mobile network Enhanced Logic (CAMEL), services may interact both in call-related and callunrelated context. Description(More)
Mobile Edge Computing (MEC) is an innovative technology that deploys virtualized “cloud native” functionality into the radio access network. The communications between applications and MEC services are designed according to the principles of Service-Oriented Architecture (SOA). The aim is to re-use existing interfaces as much as possible. In(More)
Parlay X is a set of Web Services interfaces for open access to network function. One of the alternatives for deployment of Parlay X functionality is an add-on to the Open Service Access (OSA) functionality. The OSA gateway is a special type of application server that translates the OSA interfaces in the network control protocols. The paper suggests a(More)
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