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      • Analysis of Traffic Splitting Mechanisms for 2D Mesh Sensor Networks

        Huimin She,Zhonghai Lu,Axel Jantsch,Li-Rong Zheng,Dian Zhou 보안공학연구지원센터 2008 International Journal of Software Engineering and Vol.2 No.3

        For many applications of sensor networks, it is essential to ensure that messages are transmitted to their destinations within delay bounds and the buffer size of each sensor node is as small as possible. In this paper, we firstly introduce the system model of a mesh sensor network. Based on this system model, the expressions for deriving the delay bound and buffer requirement bound are presented using network calculus theory. In order to balance traffic load and improve resource utilization, three traffic splitting mechanisms are proposed. And the two bounds are derived in these traffic splitting mechanisms. To show how our method applies to real applications, we conduct a case study on a fresh food tracking application, which monitors the food freshness status in real-time during transportation. The numerical results show that the delay bound and buffer requirement bound are reduced while applying traffic splitting mechanisms. Thus the performance of the whole sensor network is improved with less cost.

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