Share Email Print
cover

Proceedings Paper

Web server for priority ordered multimedia services
Author(s): Mehmet Celenk; Rakesh K. Godavari; Vermund Vetnes
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this work, our aim is to provide finer priority levels in the design of a general-purpose Web multimedia server with provisions of the CM services. The type of services provided include reading/writing a web page, downloading/uploading an audio/video stream, navigating the Web through browsing, and interactive video teleconferencing. The selected priority encoding levels for such operations follow the order of admin read/write, hot page CM and Web multicasting, CM read, Web read, CM write and Web write. Hot pages are the most requested CM streams (e.g., the newest movies, video clips, and HDTV channels) and Web pages (e.g., portal pages of the commercial Internet search engines). Maintaining a list of these hot Web pages and CM streams in a content addressable buffer enables a server to multicast hot streams with lower latency and higher system throughput. Cold Web pages and CM streams are treated as regular Web and CM requests. Interactive CM operations such as pause (P), resume (R), fast-forward (FF), and rewind (RW) have to be executed without allocation of extra resources. The proposed multimedia server model is a part of the distributed network with load balancing schedulers. The SM is connected to an integrated disk scheduler (IDS), which supervises an allocated disk manager. The IDS follows the same priority handling as the SM, and implements a SCAN disk-scheduling method for an improved disk access and a higher throughput. Different disks are used for the Web and CM services in order to meet the QoS requirements of CM services. The IDS ouput is forwarded to an Integrated Transmission Scheduler (ITS). The ITS creates a priority ordered buffering of the retrieved Web pages and CM data streams that are fed into an auto regressive moving average (ARMA) based traffic shaping circuitry before being transmitted through the network.

Paper Details

Date Published: 17 October 2001
PDF: 12 pages
Proc. SPIE 4584, Optical Network Design and Management, (17 October 2001); doi: 10.1117/12.445152
Show Author Affiliations
Mehmet Celenk, Ohio Univ. (United States)
Rakesh K. Godavari, Ohio Univ. (United States)
Vermund Vetnes, Ohio Univ. (United States)


Published in SPIE Proceedings Vol. 4584:
Optical Network Design and Management
Xiaomin Ren; Tomonori Aoyama, Editor(s)

© SPIE. Terms of Use
Back to Top