A backup path routing for guaranteeing bandwidth in mobile ad hoc networks for multimedia applications |
| |
Authors: | Kilhung Lee |
| |
Affiliation: | (1) Department of Computer Science and Engineering, Seoul National University of Science and Technology, Seoul, 139-743, South Korea |
| |
Abstract: | This paper suggests a backup path routing scheme in ad hoc networks for multimedia applications. A data path is established
in an on-demand manner when there is a need to send data. A primary and a backup path are created as a result of a route control
message exchange process. Each control message has additional information for guaranteeing the service quality. A backup path
is configured around the primary path in multi-hop wireless networks. After detecting a failure when sending data, a repairing
procedure occurs near the failed node of the primary path. The proposed scheme exploits the route request and reply information
exchanged between nodes to create a backup path. Proposed backup routing scheme uses a one-hop search method, and the rerouted
path length is two-hop at maximum. The service quality as measured by the error rate and delay is considered when establishing
and repairing a route by making an allowance for the required bandwidth. Simulation results show that the proposed backup
path routing scheme has a better data delivery ratio and an improved end-to-end data delay while guaranteeing the requested
bandwidth for multimedia application. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|