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Providing VoIP and IPTV Services in WLANs

Providing VoIP and IPTV Services in WLANs
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Author(s): Miguel Edo (Polytechnic University of Valencia, Spain), Alejandro Canovas (Polytechnic University of Valencia, Spain), Miguel Garcia (Polytechnic University of Valencia, Spain) and Jaime Lloret (Polytechnic University of Valencia, Spain)
Copyright: 2011
Pages: 19
Source title: Handbook of Research on Mobility and Computing: Evolving Technologies and Ubiquitous Impacts
Source Author(s)/Editor(s): Maria Manuela Cruz-Cunha (Polytechnic Institute of Cavado and Ave, Portugal) and Fernando Moreira (Portucalense University, Portugal)
DOI: 10.4018/978-1-60960-042-6.ch028

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Abstract

Nowadays, triple-play services are offered in both wireless and wired networks. The network convergence and the new services such as VoIP (Voice over Internet Protocol) and IPTV (Internet Protocol Television) are a reality. However, the future of these networks will have a different concept, breaking the current limits beyond the computers even the current mobile devices, any device may have access to any service at anytime from anywhere. In order to understand this new dimension, the ubiquity concept must be clear: an electronic device has to be able to be always connected to the network. The solutions must be based on the structures and current environments to carry out those challenges in a correct way. In order to reach this ubiquity, the science community has to take into account that its implementation should not assume a high cost to the user and that the system must comply with the quality of service measurements to satisfy the user. In this chapter, first we will show the main VoIP (Voice IP) and IPTV (IP Television) transmission protocols and the compression formats most used as also the bandwidth needed. Our goal is provide ubiquity into multimedia scenarios in WLANs. We will carry out tests to guarantee the appropriate values in some network parameters such jitter, delay, number of lost packets and enough effective bandwidth that should be satisfied. We will show the measurements taken from several test benches. They show the parameter values that the devices should perform in order to stay connected from anywhere at any time to these services.

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