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Video streaming services over the Internet is being widely used in mobile networks. From providers' point of view, the success of such service is highly correlated with the end-user degree of satisfaction which is measured in terms of Quality of Experience QoE. In fact, most of video streaming providers are adopting adaptive streaming solution that offers a better experience to the end user since...
The Internet of Things (IoT) and particularly Machine-to-Machine (M2M) communications are considered as major enablers for future smart cities' initiatives. While offering a wide range of applications and services, supporting such devices constitutes, however, one of the most important challenges to be faced by Network Operators (NO). Indeed, the expected huge number of devices requesting to connect...
The integration of heterogeneous wireless networks allows the mobile users to benefit simultaneously from the radio coverage of different access technologies (RAT: Radio Access Technology) and the diversity of applications. Nowadays, applications are becoming more and more critical in terms of Quality of Service (QoS) and dynamicity. Handover mechanism is responsible of guaranteeing the required quality...
Video streaming services are the main source of generated traffic over the internet and hundreds of million minutes are watched every day. This proves that the video streaming service is booming, and ensuring customers' satisfaction in this regard will be a major competitive advantage among Internet service providers. The common measures that are being used are mainly about quantifying the Quality...
In this paper, we study the LTE-A (Long Term Evolution Advanced) downlink scheduling. Delay aware schedulers are among the popular schedulers presented in the literature. These schedulers are based on fix and exact delay budget. Nevertheless, wireless channels are quickly modified which make fix delays not effective. Several contributions, based on fuzzy logic method, are presented in the literature...
In this work, we investigate upon the potential of considering the Intelligent Transportation Systems (ITS) for cellular traffic offloading as an alternative to Wi-Fi and femtoCells approaches. We propose an analytical study based on an optimization problem formulation called VOPP where the objective is to elect the maximum number of data flows that could be routed to the downloaders through the Vehicular...
In future cellular networks, the problem to select an optimal access network will be difficult. The context performance will be much more diversified. Mobile devices with multiple access interfaces are expected to be always best connected anywhere at any time providing ubiquitous broadband access. For these reasons, a seamless autonomic selection process for the proper radio access network is required...
Mobile communication systems have evolved considerably in recent years encouraging the deployment of multiple systems or multi-cellular technology. Quality of service (QoS) offered to mobile users improves from one system to another for example 4G systems, offer better QoS than that offered by 3G and 3.5G systems. In addition, 4G systems such as LTE (Long Term Evolution) can expand cellular coverage...
Deploying decode-and-forward relay nodes is a promising solution for LTE-advanced networks in order to meet the growing data rate demand and the challenging requirements for coverage extension. However, relay selection scheme plays a crucial role in enhancing the benefit of this technology. In this paper, we have proposed a new relay selection scheme which achieves a more balanced load in the network,...
A wireless ad-hoc network is an autonomous system of wireless routers, fixed or mobile those communicate with each other via radio links without the support of any fixed wired infrastructure. In such a topology, communication is achieved by use of multiple hop paths between the sender and the receiver. Wireless ad-hoc networks constitute a typical paradigm of networks whose performance and operability...
In the idea to create a realistic model of mobility and traffic for the networks of 3rd and 4th generation, we have studied many techniques of modeling and planning. Our choice was for the real network traces exploitation techniques, mainly because compared to other techniques this technique is very adapted to the real modeling. Although this technique is most convenient, it has many disadvantages...
In the idea to create a realistic model of mobility and traffic for the networks of 3rd and 4th generation, we have studied many techniques of modeling and planning. Our choice was for the real network traces exploitation techniques, mainly because compared to other techniques this technique is very adapted to the real modeling. Although this technique is most convenient, it has many disadvantages...
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