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The main issue in Digital Terrestrial Television and in IPTV networks is the Quality of Experience received by the end users. For this reason, there are needed mechanisms to automatically measure the video quality of the images received. In this paper we analyze video quantization in order to determinate an optimal quantizer_scale factor value for its transmission. Then, it is used as an automatic...
Many routing protocols for ad-hoc networks and sensor networks have been designed, but none of them are based on groups. We propose to divide the network into several groups of sensors. When a sensor send data to other groups, the data has to arrive just to one sensor from each group, then they propagate it to the rest of sensors in their groups. We have simulated our proposal for different types...
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