An SLA-oriented Multiparty Trust Negotiation Model based on HCPN in Cloud Environment

다국어 초록 (Multilingual Abstract)

The negotiation on Service Level Agreement (SLA) in current complex cloud environment often involves the multilateral negotiation. Therefore, this paper presents an SLA-oriented multiparty trust negotiation model based on Hierarchical Colored Petri Net (HCPN) in cloud environment. This model mainly provides trust negotiation of SLA parameters such as credibility, reliability, availability and service price so on for Cloud Service Providers (CSPs) and Cloud Service Consumers (CSCs), thus making complex process description of multiparty trust negotiation on SLA in cloud environment simple and efficient. On the basis of the HCPN model on SLA, this paper puts forward a multi-objective optimization algorithm for SLA trust negotiation. Simulation results show that the algorithm not only improves efficiency of multilateral negotiation, but also avoids QoS negotiation falling into local optimization.

목차 (Table of Contents)

• Abstract
• 1. Introduction
• 2. An SLA-oriented Multiparty Trust Negotiation Architecture
• 3. Access Control Policies on SLA-oriented Multiparty Trust Negotiation
• 4. An SLA-oriented HCPN Model for Multiparty Trust Negotiation
• 4.1 The Top-level Diagram of the HCPN Model
• 4.2 Sub-diagrams of the HCPN Model
• 5. The Multi-objective Optimization Algorithm for SLA Trust Negotiation
• 5.1. The Multi-objective Optimization Function
• 5.2. The Multi-objective Optimization Algorithm
• 5.3. Simulation Results and Analysis
• 6. Conclusions
• Acknowledgements
• References