Titlebook: NETWORKING 2004: Networking Technologies, Services, and Protocols; Performance of Computer and Commu; Networking Technolog Nikolas Mitrou,K

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Improving Distributed Firewalls Performance through Vertical Load Balancingetwork access control environment. We show that such architecture can be modified so that flow states can be kept in a distributed fashion thus reducing the space needed for packet filtering in each component of the architecture. We also show how such approach can, in some cases, improve the overall

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Performance Modelling and Evaluation of Firewall Architectures for Multimedia ApplicationsIn order to cope with new application types like multimedia applications, new firewall architectures are necessary. The performance of these new architectures is a critical factor because Quality of Service (QoS) demands of multimedia applications have to be satisfied. We show how the performance of

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Combining Source- and Localized Recovery to Achieve Reliable Multicast in Multi-hop Ad Hoc Networksypes of losses that may occur in MANETs, our Reliable Adaptive Congestion-controlled Transport protocol, or Re-ACT, combines source-based congestion- and error control with receiver-initiated localized recovery. While the latter attempts to recover localized losses (e.g., caused by transmission erro

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A Lightweight Content Replication Scheme for Mobile Ad Hoc Environmentsf data. In such a dynamic environment, there are many advantages in replicating a data item so there are multiple copies, including reduced response times and higher data availability Also, if done efficiently, replication can help reduce energy usage. In this paper, we propose the Expanding Ring re

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