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A two-hop based real-time routing protocal for wireless sensor networks

Yanjun Li 1, 2, * Chung Shue Chen 1 Ye-Qiong Song 1 Zhi Wang 2 Youxian Sun 2
* Corresponding author
1 TRIO - Real time and interoperability
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : A two-hop neighborhood information based routing protocol is proposed for real-time wireless sensor networks. The approach of mapping packet deadline to a velocity is adopted as SPEED; however, our routing decision is made based on the novel 2-hop velocity. Energyefficient probabilistic drop is embedded to enhance energy utilization efficiency while reducing packet deadline miss ratio. In case packet deadline requirement is not stringent, a new mechanism is included to release nodes which are frequently chosen as forwarders. Improvement on energy consumption balance throughout the network is observed. The true characteristics of physical and MAC layers are captured in the simulation. A real lossy link model is drawn from extensive experiments through Mica2 Motes. Simulation results show that the new protocol has achieved lower packet deadline miss ratio and higher energy efficiency.
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Submitted on : Tuesday, October 21, 2008 - 11:05:46 AM
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Yanjun Li, Chung Shue Chen, Ye-Qiong Song, Zhi Wang, Youxian Sun. A two-hop based real-time routing protocal for wireless sensor networks. 7th IEEE International Workshop on Factory Communication Systems - WFCS'08, May 2008, Dresden, Germany. ⟨10.1109/WFCS.2008.4638730⟩. ⟨inria-00332557⟩

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