QoS dynamic routing for wireless sensor networks

  • Authors:
  • Nesrine Ouferhat;Abdelhamid Mellouck

  • Affiliations:
  • Université Paris XII-Val de Marne, France;Université Paris XII-Val de Marne, France

  • Venue:
  • Proceedings of the 2nd ACM international workshop on Quality of service & security for wireless and mobile networks
  • Year:
  • 2006

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Abstract

The quality-of-service (QoS) routing in a wireless sensor network is difficult because the network topology may change constantly, and the available state information for routing is inherently imprecise.In this paper, after presenting a state of the art of this problem, we propose a distributed QoS routing that selects a network path with sufficient resources to satisfy a certain delay requirement in a dynamic environment. Multiple paths are searched in parallel to find the most qualified one. Fault tolerance techniques are brought in for the maintenance of the routing. Our algorithms consider not only the QoS requirement, but also the cost optimality of the routing path to improve the overall network performance based on reinforcement learning techniques. In this paper we are to interest particularly in some metric of QoS in particular: the delay, packets losses and also the overhead