1. VoIP Final Report Proposal Spring 2004M M M M

2. Paper Survey “Survey on QoS Management of VoIP”
Proceedings of the 2003 International Conference on Computer Networks and Mobile Computing (ICCNMC’03)
Xiuzhong Chen, Chunfeng Wang, Dong Xuan, Zhongcheng Li, Yinghua Min and Wei Zhao

3. Topics The authors divide the system into two management planes:
Data Plane
Packet Classifier
Buffer Management
Scheduling
Loss Recovery
Error Concealment
Control Plane
Admission Control
Resource Provisioning
Traffic Engineering
Connection Management

4. The Facts
IP network is resource-shared as compared to resource-dedicated PSTN
IP-based VoIP applications are cost-efficient
IP networks are based on best-effort services
IP networks are lacking of QoS control capability
Packet loss, delay and delay jitter may occur

5. What’s In It? Packet Classifier is discussed
Buffer Management and Scheduler are discussed
Packet Loss Recovery and Error Concealment are discussed
Parameter-based and Measurement-based Admission Control is discussed

6. However… Signaling protocol not covered
Multi-level VoIP services not considered
More mechanisms in data plane and control plane could be discussed
Flow-based Classifier and Scheduler
Bandwidth Broker
Inter-domain QoS Provisioning …
We will try our best to inspect them