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Open AccessArticle

A Bit Torrent Traffic Optimization Method for Enhancing the Stability of Network Traffic

1
School of information technology, Luoyang normal University, Luoyang 471934, China
2
College of Computer Science, Sichuan University, Chengdu 610065, China
*
Author to whom correspondence should be addressed.
Information 2019, 10(12), 361; https://doi.org/10.3390/info10120361
Received: 11 October 2019 / Revised: 17 November 2019 / Accepted: 19 November 2019 / Published: 20 November 2019
(This article belongs to the Section Information and Communications Technology)
With the extensive use of peer-to-peer applications in recent years, the network traffic becomes more dynamic and less predictable, which leads to the decline of network resource utilization and the degradation of network performance. Aiming towards the above problems, we explore how to strengthen the cooperation between peer-to-peer applications and networks, making the application adjust its own traffic mode according to current network traffic status to enhance the stability of network traffic. We improve two key algorithms of peer selection and choking/unchoking in the protocol and introduce traffic relaxation to characterize traffic state while taking the current most popular peer-to-peer application (bit torrent protocol) as an example. In our improved method, peers are selected probabilistically according their traffic relaxation, and the double-parameter selection problem that simultaneously considers the traffic relaxation and transfer rate of peers is also solved. Finally, we conduct simulation experiments in two real network typologies with real traffic matrix data and different sizes of bit torrent swarms; the experimental results show that our method can significantly improve the stability of the network traffic without sacrificing or even improving the performance of the bit torrent protocol when compared with original BT protocol.
Keywords: traffic optimization; bit torrent; traffic stability; traffic relaxation; peer selection; choking/unchoking traffic optimization; bit torrent; traffic stability; traffic relaxation; peer selection; choking/unchoking
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MDPI and ACS Style

Li, D.; Zhang, Y.; Jia, S.; Liu, D.; Jin, Y.; Wu, Y. A Bit Torrent Traffic Optimization Method for Enhancing the Stability of Network Traffic. Information 2019, 10, 361.

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