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— Multi-Protocol Label Switching is useful in managing multimedia traffic when some links are too congested; MPLS Traffic Engineering is a growing implementation in today's service provider networks. In This paper we propose an improvement of MPLS-TE called EMPLS-TE, it is based on a modification of operation of Forwarding Equivalence Class (FEC) in order(More)
The exponential chip weighting waveforms have been designed with the purpose of multiple access interferences (MAI) rejection based on the concept that the optimum despreading sequence in reference emphasizes the transitions in the received spreading signal of interest. The despreading sequence weighted by exponential chip waveforms was determined by only(More)
During the course to deploy Ipv6, we found several critical implementation and operational issues which distract user and possibly prevent wide deployment of Ipv6. Among the problems we noticed stateless IP autoconfiguration, which provides for each nodes connected to the network an IP address. However, two nodes may have the same address, and a network(More)
Scaling to large networks and dealing with high mobility define the major challenges in designing routing protocols for Mobile Ad hoc NETworks (MANETs). These protocols must be efficient in order to ensure quality of service (QoS) support and energy efficiency. In this paper, we investigate the effect of density and mobility on routing operation on the(More)
IPv6 is a next-generation Internet layer protocol designed by the IETF (Internet Engineering Task Force) to solve the problem of IP address depletion under the current Internet layer protocol. It has been developed to replace the current Internet Protocol version 4 (IPv4). Various operating systems support IPv6 protocol stacks and network infrastructures(More)
In this paper we examine the problem of evaluating the performance of TCP connections in a wide area network. Our approach combines analytical and simulation methods. Our model is represented by two finite buffer queues which are shared by two connections. One being the reference TCP connection and the other representing the exogenous traffic (in simulation(More)