Mohamed Ashour

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This paper provides an analytical technique to estimate the queue length and delay distributions for weighted fair queues (WFQ) with more than two queues and time-correlated variable service rates, based on two-dimensional decoupling. At first, temporal decomposition is used to convert the time-correlated queuing problem into a set of sub-problems over(More)
This paper provides an analytical technique for estimating the queue length distributions for a weighted fair queue (WFQ) system fed with long range dependent (LRD) traffic input. The analysis considers the coupling between the queues of the WFQ system due to the dependency of the queue length on the weights and input traffic of other queues. It is also(More)
This paper studies and develops efficient traffic management techniques at the base station of future multi-service IP-based network. The proposed scheduler does not only consider the delay requirements of each traffic class in a static manner, but also the instant delay margin of each packet. This is due to the fact that the instant delay margin is(More)
—This paper studies the problem of adaptive resource allocation for downlink transmission at the base station (BS) of future multi-service IP-based networks. A Delay Margin based Scheduling (DMS) approach is proposed to determine the queuing priority of an incoming packet by taking into consideration the distance between its currently experienced delay and(More)
— Mesh Wireless Local Area Network (WLAN) is a promising access network to enhance channels utilization, extend access coverage using simple and cheap network components. Power management affects mesh WLAN network coverage, topology, throughput, traffic routing and end to end delay. In this paper, the power management problem is formulated to show its(More)