A Multi-path QoS Routing Protocol in a Wireless Mobile ad Hoc Network

  • Authors:
  • Wen-Hwa Liao;Yu-Chee Tseng;Shu-Ling Wang;Jang-Ping Sheu

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ICN '01 Proceedings of the First International Conference on Networking-Part 2
  • Year:
  • 2001

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Abstract

A mobile ad hoc network (MANET) is one consisting of a set of mobile hosts capable of communicating with each other without the assistance of base stations. This paper considers the QoS (qualityof-service) routing problem in a MANET. We propose an on-demand protocol for searching for a multi-path QoS route from a source host to a destination host in a MANET, where a multi-path is a network with a source and a sink satisfying certain bandwidth requirement. Existing works all try to find a uni-path to the destination. The basic idea is to distribute a number of tickets from the source, which can be further partitioned into sub-tickets to search for a satisfactory multi-path. Through simulations, we justify that the value of our multi-path protocol is on its flexibility: (i) when the network bandwidth is very limited, it can offer a higher success rate to find a satisfactory QoS route than those protocols which try to find a uni-path, and (ii) when the network bandwidth is sufficient, it can perform almost the same as those protocols which try to find a uni-path (in both routing overhead and success rate).