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RACE: a real-time scheduling policy and communication architecture for large-scale wireless sensor networks

Mizanian, K ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1109/CNSR.2009.84
  3. Publisher: 2009
  4. Abstract:
  5. In wireless sensor networks (WSN), individual sensor nodes are inherently unreliable and have very limited capabilities to ensure real-time properties. In fact, one of the most predominant limitations in wireless sensor networks is energy consumption, which hinders the capacity of the network to provide real-time guarantees (e.g. low duty-cycles, low transmission range). Many approaches have been proposed to deal with energy/latency trade-offs, but they are likely to be insufficient for the applications where reduced delay guarantee is the main concern. We present and evaluate a packet scheduling policy and routing algorithm called RACE that inherently accounts for time constraints. We show that this algorithm is particularly suitable for communication in sensor networks in which a large number of wireless devices are seamlessly integrated into a physical space to perform realtime monitoring and control. Detailed simulations of representative sensor network environments demonstrate that RACE significantly reduces the end-to-end deadline and miss ratio in the sensor network. Also RACE will balance load and energy consumption of network and life time of network will be increased. © 2009 IEEE
  6. Keywords:
  7. Bellman-ford ; Communication architectures ; Delay guarantee ; EDF ; End-to-end deadline ; Energy consumption ; Large-scale wireless sensor networks ; Life-time ; Low duty-cycles ; Packet scheduling ; QoS ; Real time monitoring ; Real time scheduling ; Real-time ; Real-time properties ; Sensor network environment ; Time constraints ; Transmission ranges ; Wireless devices ; Communication ; Electric load forecasting ; Knowledge based systems ; Quality of service ; Response time (computer systems) ; Routing algorithms ; Sensor networks ; Sensor nodes ; Telecommunication equipment ; Wireless sensor networks
  8. Source: Proceedings of the 7th Annual Communication Networks and Services Research Conference, CNSR 2009, 11 May 2009 through 13 May 2009, Moncton, NB ; 2009 , Pages 458-460 ; 9780769536491 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4939172