Enhancing CBWFQ algorithm for bandwidth allocation

Bandwidth allocation and network traffic control are becoming complex and critical issues in wireless network environment due to the emergence of modern multimedia streaming services. Universities and research organizations attempt to provide a reliable and optimal service of internet bandwidth perf...

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Bibliographic Details
Main Author: Idris Zakariyya (Author)
Corporate Author: Universiti Sultan Zainal Abidin . Faculty of Informatics and Computing
Format: Thesis Book
Language:English
Subjects:

MARC

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050 0 0 |a TK5105.38   |b .I37 2015 
090 0 0 |a TK5105.38   |b .I37 2015 
100 0 |a Idris Zakariyya ,   |e author 
245 1 0 |a Enhancing CBWFQ algorithm for bandwidth allocation   |c Idris Zakariyya 
264 0 |c 2015 
300 |a xvi, 106 leaves :   |b ill. (some col.) ;   |c 30 cm. 
336 |a text  |2 rdacontent 
337 |a unmediated  |2 rdamedia 
338 |a volume  |2 rdacarrier 
502 |a Thesis (Master of Science) - Universiti Sultan Zainal Abidin, 2015 
504 |a Includes bibliographical references (leaves 94-100) 
505 0 |a 1. Introduction -- 2. Literature review -- 3. Research methodology -- 4. Simulation and result analysis -- 5. Conclusion 
520 |a Bandwidth allocation and network traffic control are becoming complex and critical issues in wireless network environment due to the emergence of modern multimedia streaming services. Universities and research organizations attempt to provide a reliable and optimal service of internet bandwidth performance that satisfies user requirements. The recent increase in the number of internet users in universities and industries has spurred a great need for an efficient resource allocation mechanism. Internet traffic control is one of the pitfalls in the high-speed data network. Congestion in bandwidth and memory buffer due to the saturation of network resources has affected internet service performance. This research enhanced a bandwidth allocation algorithm based on the Class Based Weighted Fair Queue (CBWFQ) scheduling technique to share and manage network resources efficiently. It also examined the implication of CBWFQ algorithm on an internet protocol router. In the process of addressing the challenge of bandwidth scarcity issues among traffic classes, an Ethernet simulation model was designed and verified using OPNET simulation software. While running the simulation, CBWFQ was implemented with a generic traffic shaping mechanism on a router for an application bandwidth guarantee. Meanwhile, various performance graphs were taken and analyzed. The obtained graphs illustrated clearly that each class of traffic meets the minimum bandwidth requirement and was shaped according to their specified rate. Furthermore, the efficiency of the enhanced CBWFQ algorithm was compared with Priority Queue (PQ), Custom Queue (CQ) and First-In-First-Out (FIFO) scheduling techniques. The results from the simulation showed significant improvements in terms of throughput, lower packet loss and queuing delay. The algorithm provided the lowest packet drop rate which is less than 10%and bandwidth utilization of 95%. The enhanced CBWFQ contributes significantly in the management of network resources efficiently. 
610 2 0 |a Universiti Sultan Zainal Abidin   |x Dissertations 
610 2 0 |a Universiti Sultan Zainal Abidin   |x Faculty of Informatics and Computing   |v Dissertations 
650 0 |a Computer networks 
650 0 |a Frame relay (Data transmission) 
655 0 |a Dissertations, Academic 
710 2 |a Universiti Sultan Zainal Abidin .   |b Faculty of Informatics and Computing 
999 |a 1000165456   |b Thesis   |c Reference   |e Tembila Campus