Dynamic decision engine for unified communication

Abstract

Enterprises nowadays are approaching towards an all IP paradigm by subscribing to different access technology links from several service providers for reliability and redundancy while providing good Quality of Service (QoS). Global System for Mobile Communications (GSM) to Voice over IP (GSM-2-VoIP) convergence and vice-versa is a step forward towards this unification goal. It requires dynamic routing between IP, digital, analog and GSM networks. A decisionmaking framework is presented that can handle both the dynamic routing decision computation at private-public network border for inbound/outbound calls (GSM-2-VoIP) and the horizontal handover decision-making among various GSM cells. The decision engine takes multiple criteria into account while computing the routing and/or handover decisions (attributes from context of the request, platform's latest conditional parameters, business objectives of the company etc.) and/or (mobility management issues, user profile, traffic load etc.) respectively. An all open source real time platform consisting of Universal Serial Radio Peripheral (USRP), GNU Radio, an extended GSM stack (OpenBTS), OpenSIPS and Asterisk is developed to validate the proof of the concept. The system gives higher throughput and lower call dropping probability with an add-on susceptible delay offering good QoS and lower cost.

An integration of semantics in Multi Criteria Decision Making for converged multimedia network management

“…1) are provided by partners: the platform's service and application plane is realized by modules from Alcatel-Lucent whereas SBC and PS are developed and tweaked by two different teams at TELECOM Bretagne, Brest. For detailed functionality, information sharing and communication between different devices over the presented architecture, the reader is referred to [5], [6]. The protocol chosen to communicate the information/rules between PDP and PEP is Diameter with newly defined and developed Attribute Value Pairs (AVPs).…”

“…7 indicates that addition of Decision Engine in the system introduces a minor overhead (delay). This calculation is performed in outsourcing enforcement mode due to more dynamics involved in that particular mode (for detailed functionality, information sharing and communication between different devices over the presented architecture in outsourcing and provisioning modes respectively, the reader is referred to [5], [6]). The delay increases almost linearly as the number of calls/requests increases and is small enough having very little impact on services.…”