A Novel Routing Protocol for Supporting QoS for Ad Hoc Mobile Wireless Networks

  • Authors:
  • Ying-Kwei Ho;Ru-Sheng Liu

  • Affiliations:
  • Department of Computer Engineering and Science, Yuan-Ze University, 135 Yuan-Tung Road, Chungli, Taoyuan, Taiwan, 32026, R.O.C.;Department of Computer Engineering and Science, Yuan-Ze University, 135 Yuan-Tung Road, Chungli, Taoyuan, Taiwan, 32026, R.O.C.

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 2002

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Abstract

The main purposes of this article are to lessen the influence of the fastchanging network topology, rapidly varying bandwidth information, and the increasing size of routing tables onquality of service routing. Based on DSDV (Destination-Sequenced Distance-Vector) routing protocol formaintaining up-to-date routing information, the related research has to update routing tables when networktopology changes; moreover, the routing tables must be updated periodically even though the networktopology has not changed. To put emphasis on QoS routing, they also have to exchange routing tables by thetime of bandwidth information changes. Furthermore, the size of routing tables increases with the numberof mobile nodes; therefore, the precious wireless bandwidth is wasted on transmitting the large-scalerouting tables. In this article, we propose an on-demand-based QoS routing protocol to mitigate theseproblems and to achieve the QoS requirement. The goal of this article is to discover an optimal routewith minimum time delay for transmitting real-time data from a source node hop by hop to adestination node under some predefined constraints. Our contributions are as follows: our researchprovides a rigorous bandwidth definition and bandwidth application, a broad view of bandwidth calculationand reservation, minimizing the size of control packets and the number of control packet transmissions,and an efficient QoS routing protocol.