The third party (3P) model has been recognized as a perspective approach for different interprovider quality of service (QoS) solutions. In this paper, we address 3P-based mapping of services classes among heterogeneous providers' networks, which constitute an end-to-end (E2E) path. We propose and investigate a novel, highly flexible mapping scheme, which enables fulfillment of E2E network performance objectives, whereas minimizing interconnection costs. Starting from E2E service requirements, the proposed scheme uses goal programming technique to select the most appropriate service class in each domain on the path. Results of the comparative analysis of the proposed scheme and the two existing 3P-based schemes have clearly demonstrated superiority of our proposal in terms of accuracy, flexibility, and capability to support deployment of various business objectives.
IndexTerms-Goal programming, interprovider negotiation, third party, quality of service.
I. INTRODUCTIONRecent trends in Internet development including cloud computing, mobility, content distribution, Internet of things, and the big data paradigm pose new architectural challenges for network interconnection in the future Internet [1]. Enhanced solutions for quality of service (QoS) provisioning are still needed, particularly regarding end-to-end (E2E) service negotiation, performance monitoring and measurements for inter-domain performance assessment. The basic bilateral approach [2], which assumes service negotiation only between the adjacent providers, fails to meet E2E requirements. On the other side, heterogeneity of the existing providers' networks, including different intradomain QoS architectures, complicates the problem of establishing QoS-enabled E2E paths.The third-party (3P) approach has been recognized as a promising solution for the interprovider QoS delivery [3]. It assumes that a trusted, authorized intermediary (3P agent) Manuscript