Study on Delay Boundary Based on SNC in Wireless Sensor Networks

Delay boundary is an important topic for evaluating the service performance of network. In this paper, we focus on the delay boundary of the end-to-end in wireless sensor networks (WSN). We propose stochastic arrive curve model and stochastic service curve model based on stochastic network calculus (SNC), which can be applied to analyze the service performance of WSN. Then we derive the end-to-end delay boundary. The numerical results indicate that the single node delay boundary and the end-to-end delay boundary will change rapidly under different parameters. The results play an important role for quality of service in WSN.