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This paper presents a new QoS multicast routing algorithm TPMA for MPLS-TE. The algorithm first modifies the evolution equation to improve standard PSO, and then utilizes TS technique to realize the balance of global and local search, further combines Fitness function to enhanced the global search ability, simultaneously considers other QoS parameters. The main objective of TPMA is to build a QoS...
Multimedia services are typically much more sensitive to throughput, delay, and packet loss than traditional services. These parameters give technical performances of the network but they do not reveal QoS perceived by users. Hence, how to capture users' overall perceptions when they are using network services is an important issue. In this paper, we simulate a streaming video environment in bandwidth...
Due to the varying population density, some ISLs of satellite networks are congested while others are underutilized. To satisfy the QoS requirements of multimedia applications, satellite routing protocols should consider the issue of improving the utilization of network resource and providing better QoS guarantees such guaranteed end-to-end delay bound as new call blocking probability (CBP) and handover...
An adaptive resource allocation scheme for QoS oriented OFDMA system, which schedules two different utility functions for the Real-time/Non Real-time traffic simultaneously, is proposed in this paper. Instead of partial consideration of uniform kinds of QoS, we introduce an updating ratio factor to schedule users of heterogeneous traffic. Due to the complex optimization objective, the general convex...
Application of genetic algorithm (GA) for distribution and grid tasks scheduling has caused more and more academic concern. In this paper, the limitations of the existing genetic algorithm are analyzed. On the basis a grid resource scheduling algorithm based on QoS Guided GA is proposed, which takes these QoS factors into consideration including the priority of tasks, deadlines and budget constraints,...
Call admission protocol (CAC) is a very important process in the provision of good quality of service (QoS) in cellular mobile networks. With micro/Pico cellular architectures that are now used to provide higher capacity, the cell size decreases with a drastic increase in the handoff rate. In this paper, we present modeling and simulation results to help in better understanding of the performance...
This paper presents an algorithm for QoS routing using genetic algorithm. The algorithm concentrates on solving the problem of multiple additive QoS parameters, which has been proven to be NP-complete. This paper discusses the various aspects of genetic algorithm design including selection, fitness function, crossover and mutation. The algorithm was implemented and tested on a 5times5 mesh network...
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