Next Generation Network (NGN) architecture was proposed by International Telecommunication Union Telecommunication Standardization Sector (ITU-T) to deliver telecommunication services satisfying the needs of modern society for an access to information. The core of NGN service stratum are IP Multimedia Subsystem (IMS) elements acting as service controls units. To assess performance of IMS components, European Telecommunications Standards Institute standardized a testing methodology, which can be also easily adopted to other network architectures. In the paper a proposition of statistical extensions of the ETSI methodology is presented. The main idea of the extensions is to evaluate system under test performance based on statistical result analysis including mean value and confidence intervals of performance metric instead of using instantaneous metric values susceptible to random factors. The extended methodology is applied and verified in performance measurements of ASON/GMPLS connection control layer in the implemented laboratory testbed.
Authors
Additional information
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Language
- angielski
- Publication year
- 2012
