Mounir Frikha

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IEEE 802.11e is a wireless local area networking standard introducing quality of service. It defines new MAC protocols, mainly HCF and EDCF. EDCF is a contention-based channel access scheme and is part of HCF for infrastructure networks and may be used as a separate coordination function for wireless ad-hoc networks. The aim of this paper is to propose a(More)
In Internet, the user's traffic crosses several domains. More and more the users want end-to-end quality of service (QoS). So it's necessary to have differentiation mechanisms in the access networks where the bottlenecks are often located. In this paper, we propose a global quality of service management applied to DiffServ environments and IEEE 802.11e(More)
Among various types of attacks on an Ethernet network, " sniffing attack " is probably one of the most difficult attacks to handle. Sniffers are programs that allow a host to capture any packets in an Ethernet network, by putting the host's Network Interface Card (NIC) into the promiscuous mode. When a host's NIC is in the normal mode, it captures only the(More)
— Wireless sensor networks (WSNs) consist of battery-constrained sensors often deployed in harsh environments with little to no human control, thereby necessitating scalable and energy-efficient techniques. For this reason, self-organizing and maintenance mechanisms are very appealing to the design of WSNs. In this paper, we propose a routing scheme, called(More)