Earticle

초록

영어

With the widespread penetration of broadband accesses, many multimedia applications, such as video surveillance, on-demand video streaming, IPTV and news broadcast are emerging. Since video streaming applications on the Internet generally have very high bandwidth requirements and yet are often unresponsive to network congestion. In order to avoid congestion collapse and improve video quality, these applications need to respond to congestion in the network by deploying adaptive control mechanisms. In this paper, we present a receiver-based, bandwidth estimation rate control mechanism with content-aware probability retransmission to limit the burden on the congested network. Like the TCP Friendly Rate Control (TFRC) protocol, we compute the sending rate as a function of the loss event rate and round-trip time. Considering the different importance of three distinct types of frames in Standard MPEG encoders, we divide data packets into three grades coarsely and adopt adaptive probability retransmission strategy to assure video playback quality. It is an extension of TCP friendly congestion control. This paper describes the smooth rate algorithm and probability retransmission mechanism. The result of experiments with competing TFRC specification demonstrates the proposed approach reaches a higher throughput and higher PSNR than TFRC congestion control algorithms especially on the bottleneck links.

목차

Abstract
 1. Introduction
 2. Related Work
 3. The Adaptive Congestion Control Method
  3.1. Receiver-based Adaptive Rate Control
  3.2. Content-Aware Probability Retransmission Packet Scheduling
 4. Experimental Results
  4.1. Simulation model
  4.2. Evaluation Metrics
  4.3. Evaluation result
 5. Conclusion and Future Work
 References

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발행기관

간행물

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• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605