Proactive QoS Routing in Ad-Hoc Networks

Abstract

Quality-of-service (QoS) routing in mobile Ad-Hoc networks is challenging because the network topology may change constantly and the available state information for routing is inherently imprecise. In this report, the authors have developed different QoS versions of the OLSR (Optimized Link State Routing) protocol, which is a "pro-active" Ad-Hoc routing protocol. They have introduced algorithms that allow OLSR to find the maximum bandwidth path and have shown that these algorithms do improve OLSR in terms of bandwidth. They have also analyzed the performance of the QoS routing protocols in OPNET, observed the results obtained, and the consequences. The simulation results show that the QoS versions of the OLSR routing protocol do improve the available bandwidth of the routes computed, but the added cost--the additional overhead also has a negative impact on the network in End-to-End Delay and Packet Delivery Ratio, especially in the high speed movement scenarios. The authors believe that proactive QoS routing is still worth while studying. Emphasis on future studies should be on how to reduce the overhead of QoS proactive routing protocols.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2003
Accession Number
ADA640274

Entities

People

  • Louise Lamont
  • Thomas Kunz
  • Ying Ge

Organizations

  • Communications Research Centre Canada

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Ad Hoc Networks
  • Algorithms
  • Bandwidth
  • Communication Networks
  • Mesh Networks
  • Mobile Ad Hoc Networks
  • National Security
  • Network Protocols
  • Network Topology
  • Networks
  • Routing Protocols
  • Security
  • Simulations
  • Topology
  • Wireless Communications
  • Wireless Networks

Fields of Study

  • Computer science

Readers

  • Computer Networking