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A Web-based design and control system has been investigated for regional optical IP (Internet protocol) networks. The system can design lightpaths connecting nodes such that given traffic is groomed with minimum number of wavelengths, or give a reserve design with additional lightpaths to groom future traffic. Reconfigurable optical add/drop multiplexers (R-OADMs) were also investigated and manufactured...
Migrating to signaling system 7 over IP through Sigtran deployment is a cost-effective solution to replace traditional low speed SS7 signaling links with highly efficient IP connectivity. This paper deals with performance evaluation of the stream control transmission protocol which is the basis of the Sigtran protocol stack. We consider an MSC/VLR-HLR mobile network segment and develop an analytical...
Providing quality of service (QoS) and traffic engineering capabilities in the next generation multi-service networks is essential, especially to support the requirements of real-time applications. multi-protocol label switching (MPLS) is rapidly emerging technology, which plays a key role in next generation networks by delivering QoS and traffic engineering features. MPLS dramatically improves the...
With the expected prevalence of IP-based wireless mobile communication networks, the provision of adequate mobility solutions becomes a key issue. The concept of network-based mobility management is currently being debated on by the Internet Engineering Task Force as a novel approach enabling mobility for user terminals which lack built-in mobility extensions. Such a concept provides an alternative...
Due to the belated start of liberalization of Croatian fixed telecom market, new entrants were able to utilize completely new model for building a fixed telecom network. Fixed NGN (Next Generation Network) model has enabled new entrants to the market to provide services in a converged fashion, where all types of services (Voice, Video, Private Data and Internet Access) are provided over a unified...
As traditional communication networks move to IP-based protocols, SIP based applications are rapidly introduced bringing evolution to telecommunication services but also some new challenges. SIP is accepted by 3GPP as a signaling protocol in IMS, IP-based architecture which is expected to take over a main role from legacy SS7 networks. Services in IMS are provided by application servers and, while...
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