DOI QR코드

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차별적이니 드랍-확률을 갖는 동적-VQSDDP를 이용한 상대적 손실차별화의 달성

Achieving Relative Loss Differentiation using D-VQSDDP with Differential Drop Probability

  • 조경래 (성균관대학교 컴퓨터공학과) ;
  • 구자환 (위스콘신메디슨대학교 컴퓨터과학과) ;
  • 정진욱 (성균관대학교 컴퓨터공학과)
  • Kyung-Rae Cho (Dept. of Computer Engineering, SungKyunKwan University) ;
  • Ja-Whan Koo (Computer Sciences Department, Univ. of Wisconsin-Madison) ;
  • Jin-Wook Chung (Dept. of Computer Engineering, SungKyunKwan University)
  • 발행 : 2008.11.14

초록

In order to various service types of real time and non-real time traffic with varying requirements are transmitted over the IEEE 802.16 standard is expected to provide quality of service(QoS) researchers have explored to provide a queue management scheme with differentiated loss guarantees for the future Internet. The sides of a packet drop rate, an each class to differential drop probability on achieving a low delay and high traffic intensity. Improved a queue management scheme to be enhanced to offer a drop probability is desired necessarily. This paper considers multiple random early detection with differential drop probability which is a slightly modified version of the Multiple-RED(Random Early Detection) model, to get the performance of the best suited, we analyzes its main control parameters (maxth, minth, maxp) for achieving the proportional loss differentiation (PLD) model, and gives their setting guidance from the analytic approach. we propose Dynamic-multiple queue management scheme based on differential drop probability, called Dynamic-VQSDDP(Variable Queue State Differential Drop Probability)T, is proposed to overcome M-RED's shortcoming as well as supports static maxp parameter setting values for relative and each class proportional loss differentiation. M-RED is static according to the situation of the network traffic, Network environment is very dynamic situation. Therefore maxp parameter values needs to modify too to the constantly and dynamic. The verification of the guidance is shown with figuring out loss probability using a proposed algorithm under dynamic offered load and is also selection problem of optimal values of parameters for high traffic intensity and show that Dynamic-VQSDDP has the better performance in terms of packet drop rate. We also demonstrated using an ns-2 network simulation.

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