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This paper proposes an intelligent rate controller for the Internet traffic. Called the IntelRate (Intelligent Rate), it is a router-based controller and uses the fuzzy logic control approach to adjust the source sending rate based on the instantaneous queue size of the router. Unlike other explicit congestion control protocols, the IntelRate controller need not evaluate the link states (such as bottleneck...
P2P applications impose an enormous traffic load on the Internet. Actually, however, topological difference between P2P network and underlying physical network (Internet network) is creating inefficient use of the physical network resources. To this problem, we propose P2P download control methods using router network parameters (e.g., number of router-hops, TCP window size and RTT) that can achieve...
Network virtualization provides the feasibility of running multiple routing architectures on a shared physical infrastructure. This paper presents the design and evaluation of a bandwidth management algorithm which is based on traffic predictor. We generated the simulation traffic with the ARMAX/GARCH model. The basic idea of our design is that some failure in the MFP computation implies that one...
With the extensive using P2P networks, P2P data stream occupied more and more bandwidth, it will affect the performance of the entire Internet. This paper studies the P2P nodes which exchange traffic disorder, through introducing XCP congestion control protocol, designs network region-based exchange unit and flow control strategy to achieve flow control. The simulation results show that the flow control...
For future Internet, network virtualization provides the feasibility of running multiple routing architectures on a shared physical infrastructure. This paper presents the design and evaluation of a bandwidth allocation algorithm based on multi-commodity flow problem solver, which integrated with a traffic predictor. The basic idea of our design is that some failure in the MFP computation implies...
Open, decentralized networks such as Internet are increasingly heterogeneous and dynamic. Applications running over such networks must be able to cope with resource restrictions and operate under the most diverse conditions. Providing multiple services over the same network has enormous effect on scalability, performances and cost of this network. Selecting a proper concept of network for mass market...
One of the most important threats to personal and corporate Internet security is the proliferation of zombie PCs operating as an organized network. Zombie detection is currently performed at the host level and/or network level, but these options have some important drawbacks: antivirus, anti-spyware and personal firewalls are ineffective in the detection of hosts that are compromised via new or target-specific...
We develop flow-level models of TCP/IP networks. We first consider access network models in a very general framework where Internet subscribers can use several types of TCP-based applications and may have limited peak rates. Using multiclass networks of Generalized Processor Sharing queues (in the sense of Cohen), we derive key performance indicators in closed-form. We then give arguments in favor...
Nowadays P2P applications dominate many networks. However, despite of their diffusion, the analysis of tele- traffic generated by these applications in real-time environment remains an open issue. In this paper we look at analytical and simulation models, which can be used for quantifying volumes of P2P teletraffic at the network layer, to ease still existing difficulties associated with monitoring...
This paper describes a new path computation model in Multi-protocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks. It introduces a path computation element (PCE), which is functionally separate from label switching routers (LSRs). The Path Computation Element (PCE) is an entity that is capable of computing a network path or route based on a network graph, and applying computational...
In this paper, we propose an adaptive pacing scheme at the link layer for IEEE 802.11 based multihop wireless networks. Our objective is to improve the performance of higher layer protocols without any modifications to them. Our adaptive pacing scheme estimates the four-hop transmission delay in the network path without incurring any additional overheads, and accordingly paces the packets to reduce...
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