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Extended use of MPLS technology in transport networks which improves routing performance introduced some more sophisticated requirements like Advanced Network Management, Quality of Service (QoS) and Resource Optimization. Generalized Multiprotocol Label Switching (GMPLS) architecture mostly meet these requirements however, connection and network availability needs to be considered. In this paper,...
With the significant increase in the Internet applications and services which have definite QoS requirements and the resources on the Internet being shared, the need of end-to-end QoS sessions has become critical. The existing QoS mechanisms provide the path selection mechanism in distributed manner which do not necessarily support the end-to-end QoS requirements. We build propose an evolutionary...
A key problem in networks that support advance reservations is the routing and time scheduling of connections with flexible starting time. In this paper we present a multicost routing and scheduling algorithm for selecting the path to be followed by such a connection and the time the data should start so as to minimize the reception time at the destination, or some other QoS requirement. The utilization...
IEEE P1900.4 is an emerging standard for optimized radio resource utilization where cognitive radio technologies are used for efficient spectrum utilization. In this paper, we design and implement a cognitive wireless network system based on open documents of IEEE P1900.4, and evaluate its performance using UDP streaming and HTTP download. Our experiments show interesting results that total network...
Network quality-of-service and network security have been considered as separate entities and research in these areas have largely proceeded independently. However, security impacts overall QoS and it is therefore essential to consider both security and QoS together when designing protocols for ad hoc environments as one impacts the other. In this paper we propose a mechanism for a distributed dynamic...
In recent years, organizations have been shifting focus to their core business competencies, and reducing total cost of ownership (TCO) associated with training and management of their IT infrastructure. In the same motif, organizations are establishing security and survivability frameworks as an integral part of their business strategy so as to provide an acceptable quality-of-service for their clients...
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