Suffix-Window Caching: A Proxy Caching Strategy for Delivery of Continuous Media in a Heterogeneous Environment

in English journal, 英文期刊
標題Suffix-Window Caching: A Proxy Caching Strategy for Delivery of Continuous Media in a Heterogeneous Environment
出版類型英文期刊(EI)
出版年度2004
AuthorsSheau-Ru Tong, 童曉儒
開始頁27
頁數5
出版日期2004 / 1
其他編號0000
中文摘要

Abstract
Transporting continuous media, such as video or audio, usually consumes a
large amount of networkresources. Due to the limited bandwidth of WAN, a
proxy is usually deployed in a LAN to serve as a common gateway for the users
located in that LAN to access external information. Through information sharing
in the proxy, we can save the WAN traffic and reduce the network response time.
For this purpose, this paper proposes a proxy caching strategy, termed
“suffix-window caching”. The basic idea is to store two kinds of video segments,
prefix and suffix-window, in the proxy. The prefix refers to the beginning
segment of a video and the suffix-window the video segment just transmitted. We
propose a scheme to utilize these two types of segments to improve the
information sharing efficiency, which in turn saves WAN traffic. And most
importantly, the scheme is able to flexibly adopt users with different buffer sizes
to achieve a high accepting rate. We compare our scheme with the previous
scheme, where only prefix was considered for caching through simulation. The
results reveal that our scheme can significantly improve the accepting rate at the
cost of moderate increase in LAN bandwidth, particular in an environment,
where users have very limited buffer space.
Keywords:continuous media transport, proxy caching theory,
buffer management.

網址http://140.127.22.92/xoops2/modules/tinycontent3/index.php?id=5
期刊名稱Journal of Internet Technology
校址:912 屏東縣內埔鄉學府路1號 總機:886-8-7703202 傳真:886-8-7740165 系統開發統維護單位:國立屏東科技大學 電算中心 版權所有