Video streaming systems with cooperative caching mechanisms

Naoki Wakamiya; Masayuki Murata; Hideo Miyahara

doi:10.1117/12.473046

1 July 2002 Video streaming systems with cooperative caching mechanisms

Naoki Wakamiya, Masayuki Murata, Hideo Miyahara

Proceedings Volume 4862, Internet Multimedia Management Systems III; (2002) https://doi.org/10.1117/12.473046
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

In this paper, we investigate mechanisms for the video streaming system where proxies cooperate to provide users with low-latency and high-quality services under heterogeneous and mobile environment where hosts have different capabilities and dynamically change their locations. The proxy is capable of adapting incoming or cached video data to user's demand by means of transcoders and filters. With such proxies, heterogeneous QoS requirements on the delivered stream can be fully satisfied by preparing high-quality video data in the local cache buffer and adjust them to the requirements. On receiving a request from a user, the proxy first checks the cache. If no appropriate data is available, it retrieves the video data of the satisfactory quality from the video server or proxies nearby. The proxy communicates with the others and finds an appropriate one for data retrieval by taking into account the transfer delay and the video quality. We propose a cooperative video caching mechanism for the video streaming system and evaluate the performance in terms of the delay introduced and the video quality.

Citation Download Citation

Naoki Wakamiya, Masayuki Murata, and Hideo Miyahara "Video streaming systems with cooperative caching mechanisms", Proc. SPIE 4862, Internet Multimedia Management Systems III, (1 July 2002); https://doi.org/10.1117/12.473046

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available