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Services utilizing wireless LANs as communication infrastructure are drawing much attention these days. However, access points (APs) of existing wireless LANs are in most cases connected with wires and it is fairly expensive to install APs. Wireless mesh network is one of the ways to solve this problem. In this paper, we propose a new method to improve the communication quality of wireless mesh network...
In all-IP networks where all types of services are integrated using IP technology, it is highly likely that traffic congestion in one service causes congestion in other services, or that abnormal traffic in one service degrades the quality of other services. This paper proposes a flexible reallocation of both computing and network resource between services, in order to reduce the chance of congestion...
Sometimes the backbone network of Internet experiences congestion because traffic is not distributed rationally. This fact may lead network resources utilized inefficiently. The main idea for load balancing is to alter the route for some traffic. But current approaches with this idea often get such a long route that decrease the quality of service. This paper presents a new flow routing adjustment...
This article proposes a model of car-to-car networks based on an adaptive self-organization overlay network. Car-to-car network is one of the promising ways to deliver the information and services among cars in order to increase the safety and reduce the traffic congestion. However, conventional works focus on the low-level communication protocols. Little works are done on the model and its nature...
Users of IP-based services need mobility support and guaranteed quality of service while using multimedia application. MIP introduced by IETF supports IP mobility at network layer. MIP however uses triangle routing, which can be considered a traffic engineering issue. The result of constant routing of packets destined to the mobile node via its home agent creates traffic congestion at this node. On...
This paper introduces an efficient analytical model to evaluate the system performance in a finite buffering queueing node by considering homogenous Markov modulated ON/OFF input sources. We formulate the MMPP/M/c models with finite buffer size and multi-servers, then we introduce an efficient tridiagonal LU factorization method to compute the quantities of interest. As we will show, applying the...
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