CoMPACT-Monitor: Changeof-measure based passive/active monitoring—weighted active sampling scheme to infer QoS

This paper proposes a new performance measurement scheme which can infer performance and/or quality experi-enced by individual user, organization and application, via a scalable and lightweight measurement way. The proposed scheme is based on change-of-measure framework and is an active measurement transformed by using passively moni-tored data. We give the theoretical basis of the proposed scheme and show its typical implementations for inferring the delay distributions. The validation of the implementa-tions of the proposed scheme is investigated through simula-tion with respect to both the accuracy of estimation and the amount of the extra traffic added by active measurement. 1