Earticle

초록

영어

The recent trend in Internet traffic indicates the proliferation of multimedia streaming services over wireless networks. The multimedia streaming over wireless access in unison with great mobility brings challenges to sustain the mobile user video quality high. Up to the present, several studies have been performed in order to provide prioritization of stations or services over WLAN IEEE 802.11 for improving the quality of multimedia service. The IEEE 802.11e draft specification aims to extend the original IEEE 802.11 MAC protocol to support QoS. In this paper, we propose a dynamic video frame mapping scheme to improve the streaming quality of SVC(Scalable Video Coding) bitstream over IEEE 802.11e. Our scheme dynamically maps the video packets to appropriate access categories based on both the significance of the video data and the client buffer occupancy. Simulation results show that the proposed scheme improves the streaming quality by improving the receiving rate of important data to decode a SVC bitstream.

목차

Abstract
 1. Introduction
 2. Related Work
  2.1. Scalability Extension of H.264/AVC
  2.2. IEEE 802.11e EDCA (Enhanced Distributed Channel Access)
  2.3. Enhancement Proposals for IEEE 802.11e
 3. Dynamic Frame Mapping Scheme over IEEE 802.11e EDCA
  3.1. Packet Mapping Scheme based on the Significance of the Video Data
  3.2. Packet Mapping Scheme based on the Buffer Occupancy of Clients
 4. Simulation Results
 5. Conclusion
 Acknowledgements
 References

키워드

저자

• Sunghee Lee [ Dept. of Communications Engineering, Kwangwoon University, Seoul, Korea ]
• Kwangsue Chung [ Dept. of Communications Engineering, Kwangwoon University, Seoul, Korea ]

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