Computer Science ›› 2014, Vol. 41 ›› Issue (7): 171-175.doi: 10.11896/j.issn.1002-137X.2014.07.035

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Heuristic QoS Routing Protocol for Wireless Sensor Networks

YU Miao,BAI Guang-wei,SHEN Hang,ZHANG Peng and CAO Lei   

  • Online:2018-11-14 Published:2018-11-14

Abstract: This paper proposed a visual-queue-based service differentiation routing protocol(VSDR) for wireless sensor networks.VSDR uses aggregated weight,and takes queue length,geographic progress and residual energy of candidate downstream nodes into consideration when nodes select routing,in order to alleviate congestion in nodes and to balance traffic load in network.More importantly,different weight strategies are assigned for packets with different QoS requirements.In this way,we provided guarantee for delay of real-time packets and probabilistic guarantee for transmission opportunities of non-real-time packets.Our simulation results demonstrate that VSDR may deal with different ser-vices effectively,balance energy consumption of all nodes,prolong network lifetime, and adapt to reliability and delay requirements of applications.

Key words: Wireless sensor networks,Routing protocol,Service Differentiation,QoS

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