Moez Esseghir

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Vehicular networking has significant potential to enable diverse applications associated with traffic safety, traffic efficiency and infotainment. In this paper, we address the issue of congestion in Vehicular Ad Hoc Networks (VANETs). In VANETs, the periodic beacon broadcast may consume a large part of the available bandwidth, which may lead to severely(More)
Wireless mobile ad hoc networks (MANETs) have emerged as a key technology for next-generation wireless networking. Because of their advantages over other wireless networks, MANETs are undergoing rapid progress and inspiring numerous applications. However, many technical issues are still facing the deployment of this technology, and one of the most(More)
Recent static spectrum allocations have created an opportunity to develop novel solutions that can efficiently share the available spectrum both in licensed and unlicensed bands. Considering the relative rarity of solutions for unlicensed spectrum access, in this paper, we propose a scheme, where the cognitive radio (CR) devices (equipped with agents)(More)
One of the most promising frameworks to handle mobility management in wireless heterogeneous networks is the Media Independent Handover (MIH) standard. Among the services MIH is providing to achieve efficient mobility management, Information Services allow data exchanging between heterogeneous network nodes. In this paper, we propose an implementation of(More)
The rapid growth of wireless services has imposed huge pressure on the fixed radio spectrum. The deficit in the limited radio frequency spectrum resources can be alleviated by adopting cognitive radio technology. This new concept aims to change the traditional static spectrum allocation into a dynamic one by exploiting unused frequencies. Researchers in(More)
Gradual request for radio frequencies makes the traditional static spectrum allocation unable to cover all users' needs in terms of spectrum resources. Accordingly, it is extremely necessary to introduce dynamic and more efficient spectrum assignment approaches. Cognitive radio was conceived as an innovative technology to enhance spectrum utilization by(More)
Dynamic spectrum sharing is a promising technique to optimize the spectrum utilization. It allows the cognitive radio (CR) nodes to access the available spectrum dynamically, without being restricted to static usage. In this paper, we propose multiagent system (MAS) based solutions to achieve licensed and unlicensed dynamic spectrum sharing. Firstly, we(More)