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Urban facility interconnection networks require a robustness and reliability usually found in public networks or private cable and radio networks in licensed bands. Both factors mean an increase in costs, which also increase as the size of the network increases. The recent rise in use of wireless technologies in open wavebands has attracted the interest of the industry in the spread of these types...
More and more VoIP applications have emerged with the development of network and multimedia coding techniques. Their traffic identification is meaningful to for network management and application optimization. In this paper, a new traffic identification scheme, which combines traffic flow statistic analysis with host behavior estimation, is proposed to identify the VoIP traffic at transport layer...
In order to overcome the known challenges of transmitting multimedia traffic over a switched packet network (i.e. latency, jitter, packet loss, etc.), careful network planning needs to take pace. Existing simulation platforms, particularly for Voice over IP (VoIP) simulations, have a limited selection of speech encoding algorithms. The primary objective of this paper is the creation of simulation...
The advent of IP communications challenged the use of legacy charging methods. Moreover, the diversity of Internet applications complicates the deployment of charging schemes in converged networks. Charging requires the collection of accounting information of resource usage, a process that consumes system resources that are needed for service delivery. Flat rate charging is popular on the Internet;...
Transmission of multimedia data in Voice over Internet Protocol (VoIP) network is challenging. Packet loss, delay, jitter, etc. highly degrade the performance of the network. Hence more robust techniques are required to provide better level of service quality. One crucial parameter to measure service quality is packet loss. The objective of this paper is to analyze the impact of packet loss and identify...
Motivated by the application of streaming multimedia to heterogeneous clients, in this paper we examine the problem of distributing layered content in a network. The source content is represented by multiple description layers that provide incremental refinement; a layer is useful only when all previous layers have been received. For such layered content, a distribution method based on linear network...
The deployment of third generation (3G) technologies is constantly growing, offering higher wireless capacity which promises broader access to IP applications including rich multimedia content. The deployment of such applications primarily requires the identification of performance characteristics offered by the underlying 3G network. In this paper, the results of a series of experiments aiming to...
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