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As multimedia real-time businesses with representative of video come into the network services, real-time performance of campus network has are influenced by similar traffic of video passing through without control. In this paper, by use of the forwarding characteristics of packet/frame switch, a strategy to reduce the self-similar traffic's impact on network performance is discussed, which is based...
Multiprotocol Label Switching (MPLS) is an Internet Engineering Task Force (IETF) specified framework that provides for the efficient designation, routing, forwarding and switching of traffic flows through the network. MPLS is a versatile solution to address the problems faced by present-day networks like speed, scalability, quality-of-service (QoS) management, and traffic engineering. MPLS carries...
Small cell base stations (BSs) that form an overlay layer on the existing macrocell network offer tremendous potential in terms of satisfying high data rate traffic requirements and enabling breakthrough services. However; small cell deployments can pose negative energy-efficiency implications if not equipped with advanced power saving mechanisms. In this work, we address this issue and propose algorithms...
Mobile communication networks are usually planned to provide some minimum service quality level during peak traffic hours. Consequently, in off-peak hours, when traffic loads are lower, the network is characterised by over-capacity, in the sense that same service quality targets can typically be satisfied with a reduced set of network resources, e.g. sites, carriers, etc. In this paper, we propose...
Recent research studies on green cellular networking indicate that most of the traffic is serviced by a few cell sites while the rest of the cells remain under-utilized, contributing to significant energy consumption levels. Previous proposals suggest turning off Base Stations (BSs) during low utilization periods to save energy by allowing neighboring cells to increase their coverage to provide the...
This paper shows a new DNS attack that hijacks DNS requests by frequently injecting fake DNS server, and then network systems communicate with wrong destinations. This type of attack is detectable by neither the IDS nor any anti spoofing software.
This paper proposes a reliability-aware application mapping for mesh-based NoCs. The proposed reliable mapping, called RMAP, adds redundant communications to the application graph in order to improve the reliability of packet delivery in NoCs. The RMAP divides the application graph into two sub-graphs which have the lowest possible communication with each other. One of the sub-graphs is mapped on...
This paper presents a new approach for solving network routing optimization problems. In particular, the goal is to optimize the traffic in the network structured event-driven systems as well as to provide means for efficient adaptation of the system to changes in the environment-i.e. when some nodes and/or links fail. Many network routing optimization problems belong to the class of NP hard problems,...
It has been reported that Internet Protocol (IP) packet traffic exhibits self-similarity or long range dependence (LRD) and causes the degradation of switch performance. Therefore, it is crucial for an appropriate buffer design of switch. In this paper, we investigate the packet loss behavior of the switch under self-similar variable packet length traffic by modeling it MMPP/M/1/K as queueing system...
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