UDT Parallel Transfer Technologies Adaptive to Network Status In High Speed Network

고속네트워크에서 네트워크 혼잡상태에 적응적인 UDT 병렬전송 기법

  • 박종선 (전북대학교 전자정보공학부 컴퓨터공학과) ;
  • 조기환 (전북대학교 컴퓨터공학과)
  • Received : 2013.09.16
  • Accepted : 2013.12.24
  • Published : 2013.12.30


With increasing transmission speed of backbone networks, it is getting to provide enough available bandwidth. However, the bandwidth is not effectively utilized in volumetric data transfer. This mainly comes from the transmission protocol, TCP, which is used for most applications. TCP is inherently difficult to adapt the available bandwidth because of it's own characteristic of transfer mechanism. UDT is a prominent application level data transfer protocol which is targeting high speed network. In this paper, we propose UDT parallel transfer technologies which is adaptive to network status and then evaluate their performance in two points of view. Firstly, we measure data transfer rate of UDT with rate congestion control methods, and compare them with basic UDT. Secondly, we apply parallel transfer technologies adapted to network status, and measure their performance. Experimental results showed that UDT rate congestion control method outperforms UDT with 106% improvement in RTT 100ms section set with jitter 30ms. In addition, performance of parallel transfer with rate congestion control method showed 107% improvement than that of parallel transfer in RTT 400ms section set with jitter 20ms.