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http://dx.doi.org/10.6109/jkiice.2017.21.8.1508

Design of Bandwidth Measurement based Scheduler for Improving MPTCP Performance in Bufferbloat Environment  

Kim, Min Sub (Department of Radio and Information Communications Engineering, Chungnam National University)
Han, Ki Moon (Department of Radio and Information Communications Engineering, Chungnam National University)
Lee, Jae Yong (Department of Radio and Information Communications Engineering, Chungnam National University)
Kim, Byung Chul (Department of Radio and Information Communications Engineering, Chungnam National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.8, 2017 , pp. 1508-1516 More about this Journal
Abstract
Multipath TCP (MPTCP) is a transport layer protocol that supports multipath transmission. If a bufferbloat occurs in one of the subflows of MPTCP, HoL blocking occurs at the receiver due to the difference in packet arrival time among paths. In MPTCP, HoL blocking degrades not only the performance of the path where bufferbloat occurs, but also the performance of other paths. In this paper, we propose a bandwidth measurement based scheduler to solve this problem. Bandwidth measurement based scheduler is designed to measure the bandwidth of each subflow and to perform packet scheduling based on it. In order to verify the proposed scheduler, we implemented the proposed scheduler in the Linux kernel and constructed a testbed in which bufferbloat occurs. Experimental results show that the proposed scheduler has better performance than the legacy MPTCP in bufferbloat environment.
Keywords
Multipath TCP; MPTCP Scheduler; bufferbloat; Head-of-Line blocking; Available Bandwidth Estimation;
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Times Cited By KSCI : 1  (Citation Analysis)
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