|
|
|
|
|
|
|
|
|
|
|
|
|
|
Routing protocols for mobile ad-hoc networks (continued)
On-demand routing protocols
Another in the family of routing protocols for mobile ad-hoc network is on-demand routing protocols. With on-demand protocols, if a source node requires a route to the destination for which it does not have route information, it initiates a route discovery process which goes from one node to the other until it reaches to the destination or an intermediate node has a route to the destination.
It is the responsibility of the route request receiver node to reply back to the source node about the possible route to the destination. The source node uses this route for data transmission to the destination node. Some of the better known on-demand protocols are Ad-hoc On-demand Distance Vector routing (AODV), Dynamic Source Routing (DSR) and Temporary Ordered Routing Algorithm (TORA).
These protocols differ on storing the previously known route information and on how they use the established route data. Again, in a network with many participating nodes we may suffer with same sort of problems what we have seen in table-driven protocols.
Conclusion
In conclusion, routing is one of the core issues in mobile ad-hoc network. An effective routing mechanism will be helpful to extend the successful deployment of mobile ad-hoc networks. Current routing protocols provide routing solutions up to a certain level, but are lacking the ability to handle other related issues.
Moreover most of these protocols have designed and implemented on small scale. If these protocols could be extended further by taking into accounts other routing related factors we may come out with a standard routing solution for mobile ad-hoc network.
Heather Wardell received her first Palm handheld in 1997 (from a boss who couldn't get the hang of Graffiti) and has never looked back. She worked in banking as a systems analyst for four years, and then moved into elementary education, teaching computers at a private elementary school for four years. Heather is now a full-time women's fiction writer, and her first novel, "Life, Love, and a Polar Bear Tattoo" is available for free download through her Web site at http://www.heatherwardell.com.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
-- Advertisement --
BLOGGING AND PODCASTING WITH ONE EASY-TO-USE TOOL
Now you can publish your thoughts, opinions, and comments in your own blog or podcast.<p />
- Supports multiple authors and multiple blogs or podcasts.
- Generate and publish RSS feeds for iTunes and other directories.
- Post photos, images or animations.
- Get feedback and have conversations with visitors to your site. <p />
Personalize your blog or podcast with your own unique domain name -- or integrate it with your existing site by setting it up as a subdomain.
Tap here and get blogging or podcasting within minutes. |
|
|
|
|
|
|
|
|
|
|
|
