一种无线传感器网络移动性支持自适应MAC协议

doi:10.3969/j.issn.1001-2400.2010.02.017

Abstract

Abstract:

A mobility supporting adaptive MAC protocol RM-MAC (RSSI based Mobility support MAC) in the wireless sensor network is proposed. First, we quantize the nodes' receiving range and get the neighboring nodes list based on quantized RSSI values.Then, using the Kalman filter model, we predict the mobile nodes' position vector after an investigated period. Finally, employing the quantized RSSI values and forecasted position vectors, we build the dynamic synchronization adjustment model within the virtual clusters in order that the clusters can maintain a high connectivity with mobile nodes. Simulation results show that compared with S-MAC, RM-MAC can obtain a higher network connectivity and delivery ratio by dynamically adjusting the synchronization frequency at a price of sacrificing certain energy. Furthermore, we find that the delivery ration has a close relationship with the quantification level and cluster switch threshold.

Key words: wireless sensor networks, network protocols, RSSI, mobility support

CHEN Chen;GAO Xin-bo. Mobility supporting adaptive MAC protocol in WSN[J].J4, 2010, 37(2): 279-284.

References

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Mobility supporting adaptive MAC protocol in WSN

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