Earticle

초록

영어

With the emergency of more and more video applications, the problem of providing differentiated Quality of Service (QoS) for various kinds of streams should be solved. DiffServ was proposed to balance transmission guarantee of video and data streams. Existing studies focused on the promotion of video receiving quality by allocating excess resources. In this paper we propose an optimal bandwidth reservation mechanism, aiming at proper amount of bandwidth reservation and good video transmission performance. This mechanism tries to find a moderate reservation according to the video characteristics and buffer size of forwarding routers. Various video sequences and different buffer sizes are employed in the performance evaluation experiments and simulation results verify that (1) Proposed mechanism show its adaptability to data rate, data rate variation and continuous burst of the streaming video. (2) Proposed mechanism presents good performance under various buffer sizes. (3) The amount of bandwidth reservation, which is determined by the streaming video and buffer size of forwarding routers, is moderate to ensure video receiving quality.

목차

Abstract
 1. Introduction
 2. Optimal Bandwidth Reservation
  2.1. Basic Version
  2.2. Standard Deviation Compensation Version
 3. Simulation Environments
  3.1 NS-2 DiffServ Configurations
  3.2 Simulation Topology
  3.3. Video Sequences
  3.4. Comparative Schemes
 4. Evaluation
  4.1. Results Under default Buffer Size
  4.2. Results under Various Buffer Sizes
 5. Conclusions
 References

키워드

저자

• Zheng Wan [ School of Information Technology, Jiangxi University of Finance and Economics, Nanchang, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605