adaMOS: MOS-adaptive VoIP sources
WebMedia '06 Proceedings of the 12th Brazilian Symposium on Multimedia and the web
WLAN VoIP capacity allocation using an adaptive voice packetization server
Computer Communications
Efficient and stateless deployment of VoIP services
Computer Networks: The International Journal of Computer and Telecommunications Networking
Enabling high-speed and extensible real-time communications monitoring
IM'09 Proceedings of the 11th IFIP/IEEE international conference on Symposium on Integrated Network Management
Admission control for VoIP calls with heterogeneous codecs
WOCC'09 Proceedings of the 18th international conference on Wireless and Optical Communications Conference
Survey on application-layer mechanisms for speech quality adaptation in VoIP
ACM Computing Surveys (CSUR)
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In this paper, we present a survey on management mechanisms used for ensuring the Quality-of-Services for Voice-over-IP applications. We first address the motivations of QoS management for VoIP. We then partition the system into two management planes: data plane and control plane, and describe mechanisms in each plane respectively. In data plane, we cover several important techniques including packet classifier, buffer management, scheduling, loss recovery, and error concealment. In control plane, we describe admission control, resource provisioning, traffic engineering, and connection management etc. As we will see, admission control plays a critical role in QoS for VoIP. Thus, we will discuss methodologies used in admission control in detail. Specifically, we examine parameter-based and measurement-based admission control algorithms, and their use in VoIP. Finally, we discuss limitations of current technologies and future research issues in providing QoS to VoIP applications.