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An adaptive UDT congestion control method with reflecting of the network status | IEEE Conference Publication | IEEE Xplore

An adaptive UDT congestion control method with reflecting of the network status


Abstract:

Nowadays, most of networks support several tens of Gb/s with advance of the optical technologies. However, TCP protocol is known to be less suitable for fast transmission...Show More

Abstract:

Nowadays, most of networks support several tens of Gb/s with advance of the optical technologies. However, TCP protocol is known to be less suitable for fast transmission due to its AIMD characteristic. As an alternative, UDT protocol has been invented to efficiently utilize network bandwidth; it periodically controls the sending rate for the fixed sync-interval, 0.01 sec. Here, if the network status varies quickly, the available bandwidth is not able to be properly utilized in-between the sync-intervals. In this paper, we propose an adaptive congestion control method in order to reflect the network status. The network status is estimated based on RTT variances. It is divided into four classes, and then properly utilized to differentiate the sending rate. The simulation results show that the proposed method improves the message delivery throughput as well as stability than that of the UDT protocol.
Date of Conference: 01-03 February 2012
Date Added to IEEE Xplore: 09 March 2012
ISBN Information:

ISSN Information:

Conference Location: Bali, Indonesia

I. Introduction

Recently, high-speed networks are connected each other using the optical technologies. So, network bandwidth is expanded to several tens of Gb/s which enable data intensive applications that were impossible in the past. That is, various new researches are in progressed, in which demand a large-scale data transmission, such as the study on nuclear fusion, synoptic correlation research, and high energy physics, and etc. Traditionally, most of these applications make use TCP mechanism as a transmission protocol.

References

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