World Library  
Flag as Inappropriate
Email this Article

Geocast

Article Id: WHEBN0004905858
Reproduction Date:

Title: Geocast  
Author: World Heritage Encyclopedia
Language: English
Subject: Anycast, Routing, Abiding Geocast / Stored Geocast, Routing scheme, Broadcasting (networking)
Collection: Internet Architecture, Internet Broadcasting
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Geocast

Geocast refers to the delivery of information to a group of destinations in a network identified by their geographical locations. It is a specialized form of multicast addressing used by some routing protocols for mobile ad hoc networks.

Contents

  • Geographic addressing 1
  • Applications 2
  • See also 3
  • References 4
  • External links 5

Geographic addressing

Routing schemes

anycast

broadcast

multicast

unicast

geocast

A geographic destination address is expressed in three ways: point, circle (with center point and radius), and polygon (a list of points, e.g., P(1), P(2), …, P(n–1), P(n), P(1)). A geographic router (Geo Router) calculates its service area (geographic area it serves) as the union of the geographic areas covered by the networks attached to it. This service area is approximated by a single closed polygon. Geo Routers exchange service area polygons to build routing tables. The routers are organized in a hierarchy.

Applications

Geographic addressing and routing has many potential applications in geographic messaging, geographic advertising, delivery of geographically restricted services, and presence discovery of a service or mobile network participant in a limited geographic area.[1]

See also

References

  1. ^ J.C. Navas, T. Imielinski (1997). GeoCast - Geographic Addressing and Routing. Proceedings of the 3rd annual ACM/IEEE international conference on Mobile computing and networking (Budapest, HU: Association of Computing Machinery). pp. 66–67.  

External links

  • RFC 2009 GPS-Based Addressing and Routing
  • A Survey of Geocast Routing Protocols
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.