Voice over IP performance monitoring
ACM SIGCOMM Computer Communication Review
Wireless ATM and Ad-Hoc Networks: Protocols and Architectures
Wireless ATM and Ad-Hoc Networks: Protocols and Architectures
Evaluating the Performance of Various Architectures for Wireless Ad Hoc Networks
HICSS '04 Proceedings of the Proceedings of the 37th Annual Hawaii International Conference on System Sciences (HICSS'04) - Track 9 - Volume 9
Transmission of VoIP Traffic in Multihop Ad Hoc IEEE 802.11b Networks: Experimental Results
WICON '05 Proceedings of the First International Conference on Wireless Internet
SERA '05 Proceedings of the Third ACIS Int'l Conference on Software Engineering Research, Management and Applications
FGCN '07 Proceedings of the Future Generation Communication and Networking - Volume 02
Playout buffering in ip telephony: a survey discussing problems and approaches
IEEE Communications Surveys & Tutorials
Delay reduction techniques for playout buffering
IEEE Transactions on Multimedia
User and network level evaluation of VoIP over emergency ad-hoc networks
Proceedings of the 5th International ICST Mobile Multimedia Communications Conference
Simulation study of VoIP performance in IEEE 802.11 wireless mesh networks
MACOM'10 Proceedings of the Third international conference on Multiple access communications
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The low-cost of packet-based networking technologies with respect to traditional circuit-switched ones and the reliability of the current (wired) IP networks have brought to a considerable employment of the VoIP (Voice over IP) technologies in the voice services market. This success is expected to happen also in mobile ad hoc networks (MANETs), which may offer a good platform for the fast deployment of VoIP mobile networks. However, efforts must be made to improve performance before MANETs can be used for this purpose. One of the main limitations is related to the highly variability of the network topology and channel behavior, which heavily influences the service quality due to route losses and significant delay variations. In this paper, we propose a strategy where these impairments are jointly addressed. The source is responsible for jointly selecting the transmission paths and adjusting the playout delay, with an adaptive inter-talkspurt approach. These tasks are accomplished on the basis of historical data on network connectivity and transmission delays, and are driven by a quality-based approach. The collection of statistics of the network status relies on the QOLSR routing algorithm, whereas the voice quality is measured by means of the ITU-T E-Model.