A Cost Function for QoS-Aware Routing in Multi-tier Wireless Multimedia Sensor Networks

  • Authors:
  • Stéphane Lohier;Abderrezak Rachedi;Yacine Ghamri-Doudane

  • Affiliations:
  • IGM, Université de Paris-Est Marne-la-Vallée, Champs sur Marne, France 75420;IGM, Université de Paris-Est Marne-la-Vallée, Champs sur Marne, France 75420;ENSIIE, Evry Cedex, France 91025

  • Venue:
  • MMNS 2009 Proceedings of the 12th IFIP/IEEE International Conference on Management of Multimedia and Mobile Networks and Services: Wired-Wireless Multimedia Networks and Services Management
  • Year:
  • 2009

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Abstract

Wireless Multimedia Sensor Networks (WMSNs) are composed of small devices that are able to capture video or audio information and to transmit it over wireless channels. The development of wireless technologies, such as: WiFi, Bluetooth, Zigbee, and UWB, encourages the emergence of heterogeneous networks. However, only a few existing solutions take into account the constraints of multi-tier and multi-MAC wireless sensor networks. In this paper, we propose a cost function coupled to a new generic (i.e. independent from any MAC protocol) cross-layer routing protocol adapted to multimedia traffic over hierarchical and heterogeneous networks. The goal of our proposed protocol is to dynamically assess the routing process cost and the requirement of the multimedia application in order to ensure a sufficient quality of service (Soft QoS). Furthermore, the cross-layer approach is needed to use the physical and MAC parameters on the routing operation. Simulation results show that our solution is efficient and gives better results than classical protocols.