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An Adaptive UDT Rate Control Method on Network Traffic Condition  

An, Do-Sik (Chonbuk National University)
Wang, Gi-Cheol (KISTI)
Kim, Seung-Hae (KISTI)
Cho, Gi-Hwan (Chonbuk National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.48, no.3, 2011 , pp. 19-27 More about this Journal
Abstract
Due to the growth of optical fiber network technologies, most networks recently support several tens of Gb/s bandwidth. UDT(UDP-based Data Transfer protocol) is an optimized protocol for bulk data transmission on the network, which has the high bandwidth and long delay time. It periodically controls the sending rate on the fixed sync-interval, 0.01 sec. Here, if the network traffic status varies quickly, available network bandwidth is not able to be properly utilized in-between the sync-intervals. In this paper, we propose an adaptive rate control method with considering the network traffic status in-between the sync-interval periods. The network traffic status is determined based on the RTT variances. With dividing the network status into four classes, the proposed method performs a new rate control by adjusting the inter-packet sending period for a corresponding class. As a simulation result, the proposed method improves the message delivery throughput as well as stability than that of the existing UDT Protocol.
Keywords
UDT; Rate Control; Sending period; Sync-interval;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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