Proactive QoS Routing in Ad-Hoc Networks

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Authors
  1. Ge, Y.
  2. Lamont, L.
  3. Kunz, T.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN);Communications Research Centre, Ottawa ONT (CAN);Carleton Univ, Ottawa ONT (CAN)
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 pro-active routing protocols.

Il y a un résumé en français ici.

Keywords
Ad-Hoc Network;Routing Protocol;Quality of Service;QoS Routing;OLSR;Protocol simulation
Report Number
DRDC-OTTAWA-TR-2003-075;CRC-RP-2003-005 — Technical Report
Date of publication
01 Jun 2003
Number of Pages
64
DSTKIM No
CA022805
CANDIS No
519808
Format(s):
Hardcopy;CD ROM

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