3627

3426

كارشناسي ارشذ

مخابرات

اصفهان :دانشگاه صنعتي اصفهان ،دانشكده برق و كامپيوتر

1386

ده ، 175، [II]ص. :مصور ، جدول ،نمودار

ص.ع.به فارسي و انگليسي

فرامرز هندسي

مهدي مهدوي

8/5/86

مهندسي برق و كامپيوتر

ID3426

به فارسي و انگليسي : قابل رويت در نسخه ديجيتال

Abstract As a result of growth of Internet in recent years different data flows should contend eachother for more resources On the other hand some applications need to have a guaranteedbandwidth So we need a fair resource allocation algorithm with an acceptable QoS guaranteefor all applications This procedure is more vital for End networks So for meeting theserequirements traffic management and bandwidth allocation methods are necessary In this thesis we analyze different methods of bandwidth allocation in data networks At first we analyze network layer algorithms that are used for resource allocation and QoS guarantee Then we study several bandwidth allocation algorithms which are activated by end users to beable to increase QoS by allocating bandwidth among different data flows After that wesimulate a typical algorithm in OPNET For making that algorithm perfect we will introduce abandwidth management system This system has a hierarchical structure that is working in twolevels At the first level user s request would be analyzed based on each user s weight Ifthere is enough bandwidth the request will be accepted and guaranteed At the second level auser s flows will be managed based on allocated rate of each flow This part of algorithm islocally implemented in every user s computer We prove simulative that this algorithm notonly prepares a guaranteed minimum rate for each user but also the remained rate could beallocated in a best effort manner

فرامرز هندسي

مهدي مهدوي