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This paper presents some end to end measurements of multimedia services carried out in the frame of LTExtreme project. We provide some understanding of the main parameters and the role of the different protocol layers in the achievement of the desired Quality of Experience (QoE). The trade-offs related to the adaptation algorithms that have been tested in a demonstrator are discussed, showing that...
The Long Term Evolution (LTE) network provides high bandwidth, flexible modulation and coding scheme for emerging mobile applications. The issues of power saving and quality of services are very critical for the success of deployment of mobile applications. This paper presents a buffer aware scheduling approach to reduce power consumption while maintaining the receiving quality of video streaming...
In the "Youtube Era", mobile consumption of video, such as Video on Demand (VoD) and User Generated Content (UGC), has been steadily increasing. However, mobile networks are showing to be unprepared for such phenomenal traffic volume, whereas the devices' multiple interfaces are being exploited to address this problem. As such, the interest in offloading techniques has significantly increased,...
With the increasing popularity of accessing multimedia services over different wireless networks, researchers have been trying to develop different adaptive multimedia mechanisms in order to mitigate the impact of fluctuating radio resources. This paper considers the case when multiple users stream video over the same IEEE 802.11b WLAN using a newly proposed Signal Strength-based Adaptive Multimedia...
The demand for multimedia services is increasing and users expect rich services at high quality levels, even while on the move and connected via different wireless networks. This paper proposes a novel signal strength-based adaptive multimedia delivery mechanism (SAMMy) that makes use of the IEEE 802.11k standard when dynamically adjusting multimedia delivery based on estimated signal strength and...
Mobility has become a mandatory feature of the future Internet as mobile computing gains increasing popularity among Internet users. The rapidly evolving heterogeneous wireless environment provides a variety of communication resources for the mobile host. In order to fully benefit of these wireless access networks an efficient and quality oriented mobility management system has to be employed. This...
The explosive demands of multimedia services have been grown up to support delay-sensitive applications, e.g., VoIP and streaming using codec. When a mobile node (MN) moves across different types of networks, the codec should be effectively adapted according to the significant change of network condition, i.e., throughput and delay. Therefore, in this paper, we propose a codec adaptation for vertical...
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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