Packet audio playout delay adjustment: performance bounds and algorithms
Multimedia Systems
Voice over IP performance monitoring
ACM SIGCOMM Computer Communication Review
Simulation Modeling and Analysis
Simulation Modeling and Analysis
MANET simulation studies: the incredibles
ACM SIGMOBILE Mobile Computing and Communications Review - Special Issue on Medium Access and Call Admission Control Algorithms for Next Generation Wireless Networks.: The Digital Library version of this issue has a corrected special issue title compared to the one in the print version of the issue.
Quantifying Skype user satisfaction
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
An integrated framework for enabling effective data collection and statistical analysis with ns-2
WNS2 '06 Proceeding from the 2006 workshop on ns-2: the IP network simulator
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 200. on IEEE International Conference - Volume 02
Playout buffering in ip telephony: a survey discussing problems and approaches
IEEE Communications Surveys & Tutorials
Performance evaluation of real-time schedulers for HCCA function in IEEE 802.11e wireless networks
Proceedings of the 4th ACM symposium on QoS and security for wireless and mobile networks
WiMsh: a simple and efficient tool for simulating IEEE 802.16 wireless mesh networks in ns-2
Proceedings of the 2nd International Conference on Simulation Tools and Techniques
An 802.11e HCCA scheduler with an end-to-end quality aware territory method
Computer Communications
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
User and network level evaluation of VoIP over emergency ad-hoc networks
Proceedings of the 5th International ICST Mobile Multimedia Communications Conference
Ns2Voip++, an enhanced module for VoIP simulations
Proceedings of the 3rd International ICST Conference on Simulation Tools and Techniques
Cross-layer routing metrics for mesh networks: Current status and research directions
Computer Communications
Service-aware retransmission control in cellular networks
Journal of Computer Systems, Networks, and Communications - Special issue on lightweight mobile and wireless systems: technologies, architectures, and services
NETWORKING'10 Proceedings of the 9th IFIP TC 6 international conference on Networking
UARA in edge routers: an effective approach to user fairness and traffic shaping
International Journal of Communication Systems
Combining quality of services path first routing and admission control to support VoIP traffic
Future Generation Computer Systems
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Voice over IP (VoIP) is gaining an ever increasing popularity. As such, it nowadays represents one of the most studied test applications in the performance evaluation of wireline and wireless networks. However, a sound performance analysis of VoIP communications should be carried out at the user level, by computing perceptive metrics like the Mean Opinion Score (MOS) or the E-Model. In this paper, we present enhancements to the popular Network Simulator 2 (ns-2) that allow a reliable VoIP user-level performance analysis to be carried out through simulation. We show that computing performance measures at the IP level, which is usually done in ns-2, often leads to inaccurate results. Our code is publicly available at http://info.iet.unipi.it/~cng/ns2voip/.