Published on Apr 02, 2024
WELCOME TO THE SEMINAR
ON
Adding Intelligence to Internet Using Satellites
Introduction
==> The satellite system can improve service to bandwidth-starved regions of the globe where terrestrial networks are insufficient and supplement terrestrial networks elsewhere.
==> This new generation of satellite system manages a set of satellite links using intelligent controls at the link endpoints.
==> The intelligence uses feedback obtained from monitoring end-user behavior to adapt the use of resources.
==> Mechanisms controlled include caching, dynamic construction of push channels, use of multicast, and scheduling of satellite bandwidth
Issues in second-generation satellite link control
==> The first reason is obvious: it will be years before terrestrial networks are able to provide adequate bandwidth uniformly around the world, given the explosive growth in Internet bandwidth demand and the amount of the world that is still unwired.
==> Second, geosynchronous satellites allow direct single-hop access to the Internet backbone, bypassing congestion points and providing faster access time and higher net throughputs
==> A third reason for using geosynchronous satellites is that the Internet's traffic distribution is not uniform worldwide: clients in all countries of the world access content (e.g., Web pages, streaming media) that today is chiefly produced in a few regions of the world
A typical speech signal
==> Figure
Internet Delivery System
==> IDS uses caching (e.g., Table 1) at both ends of the satellite to hide or avoid latency, in the form of large (terabyte-size) content warehouses and kiosks
==> automated monitoring of user behavior to dynamically create multicast push channels of content
==> proactive content refreshing that updates inconsistent cached documents before users request those documents
IDS data flow
==> Figure
Components at the kiosk
==> Like the warehouse, the IDS kiosk is also composed of four major components:
(1) the cache subsystem,
(2) the transmission subsystem,
(3) the management subsystem, and
(4) the database subsystem.
Design issues and goals
==> Time to live (TTL) fields, implemented using the "expires" header field in HTTP, are used by content publishers to set a TTL for objects they create
==> Invalidation protocol is an origin-server-oriented solution that puts the onus on the origin server to invalidate cached copies of an object whenever the object is updated
==> Client polling is a technique in which caches periodically query the origin server to determine whether an object has changed. The query frequency is a key factor in this technique
Roadmap for the future
==> While the planet becomes wired through terrestrial and undersea high-bandwidth fiber links, geostationary satellites offer an ideal platform for offering an intelligent and high-performance infrastructure for Internet delivery.
==> The first generation of such intelligent products will be available this year.
==> These products and services will also serve as the proving grounds for several next-generation internet services, such as virtual private networks (VPNs), which offer security as well as guaranteed quality of service from the content providers to the end users
Conclusion
==> A new generation of Internet access built around geosynchronous satellites can provide immediate relief.
==> They can improve service to bandwidth-starved regions of the globe where terrestrial networks are insufficient and supplement terrestrial networks elsewhere.
==> This new generation of satellite system manages a set of satellite links using intelligent controls at the link endpoints.
==> Mechanisms controlled include caching, dynamic construction of push channels, use of multicast. and scheduling of satellite bandwidth
References
==> www.seminarsonly.com
==> mail : contactv2@gmail.com
| Are you interested in this topic.Then mail to us immediately to get the full report.
email :- contactv2@gmail.com |
