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Research on QoS Routing Optimization Based on Multi-Objective Evolutionary Algorithms

Author: HuangJun
Tutor: LiuYanBing
School: Chongqing University of Posts and Telecommunications
Course: Computer Software and Theory
Keywords: Broadband network Quality of service Routing Multi-objective optimization Evolutionary algorithm
CLC: TP393.02
Type: Master's thesis
Year: 2009
Downloads: 35
Quote: 1
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Abstract


In the field of broadband Internet , high-speed , high-quality information channel leaps and bounds to the promotion and popularization of multimedia services has brought unprecedented opportunities and challenges . Broadband network technology - driven multimedia data communication in the proportion of the total communication business is rapidly rising , the streaming media business has become a multimedia communication services , the fastest growing , most competitive areas . Important supporting technology and multimedia real-time service as a broadband network technology research and practice of network QoS routing important carrier received extensive attention, research has become one of the hot spots . However , the traditional best-effort routing transmission mode only care about the average performance of the network , and a variety of data streams in the equal sharing of network resources and network transmission along multiple paths , no QoS specification . Therefore , from the perspective of multi-objective optimization to establish an efficient QoS control mechanisms and strategies , performance guarantees and service differentiation for different types of services provided , and this has important theoretical value and practical significance . The papers will be \Firstly, the current QoS method inductive analysis pointed out the necessity and urgency of QoS routing mechanism ; then around elaborate QoS-related technology , summarizes typical QoS routing problem and classic algorithms , and network requirements for background , combined with the network QoS specific characteristics of the generic model and its formal description of the kind of network QoS routing ; this basis , the design of a new multi- objective evolutionary algorithm analyzes discussion focused on the complexity of the algorithm and the algorithm convergence , and by example tests to verify the validity and reasonableness of the algorithm ; then , based on the proposed algorithm , the researchers explore applications in the the MANET network environment under clear implementation details ; Finally, by OPNET simulation platform , multi-angle experimental validation of the proposed algorithm and performance assessment and conclusion : papers related algorithms proposed algorithm in solving time and solution quality both are dominant . Through the above research , the paper for Broadband Network QoS guarantee mechanism and multi-objective evolutionary theory in engineering practice to explore a new way to have the actual reference value .

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