A mobility based link layer approach for mobile wireless sensor networks

Prasad Raviraj, Hamid Sharif, Michael Hempel, Song Ci, Hesham H Ali, Jong-Hoon Youn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Several MAC protocols have been proposed for Wireless Sensor Networks (WSNs). These include T-MAC, D-MAC and the more commonly utilized SMAC. In this paper, we propose a new MAC layer approach to support mobility in WSNs. The proposed technique utilizes an adaptive frame size approach to overcome the effect of frame losses caused by the Doppler shifts under mobile scenarios. An Extended Kalman Filter is used to predict the frame size for each transmission, which also directly enhances the energy efficiency of the system. Our results show that based on the adaptive frame size predictor and its comparison with the SMAC protocol, the proposed technique can improve overall system performance and deliver enhanced energy efficiency of 24% under mobility. The current implementation of ns-2 does not take into consideration the packet error rate. As another contribution of our work, we have developed a physical layer model for ns-2, which processes the received frame based not only on the fading characteristics of the signal but also the SNR and relative velocity between the nodes. To characterize a more accurate wireless sensor networks' physical layer, we have modeled the Mica-2 sensors in MATLAB and implemented the model in ns-2 for simulations.

Original languageEnglish (US)
Title of host publication2005 IEEE International Conference on Electro Information Technology
StatePublished - Dec 1 2005
Event2005 IEEE International Conference on Electro Information Technology - Lincoln, NE, United States
Duration: May 22 2005May 25 2005

Publication series

Name2005 IEEE International Conference on Electro Information Technology
Volume2005

Conference

Conference2005 IEEE International Conference on Electro Information Technology
CountryUnited States
CityLincoln, NE
Period5/22/055/25/05

Fingerprint

Wireless sensor networks
Energy efficiency
Network protocols
Doppler effect
Mica
Extended Kalman filters
MATLAB
Sensors

Keywords

  • Adaptive frame size
  • Energy efficiency
  • Extended Kalman filter
  • Mobility
  • Physical layer model
  • Wireless sensors

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Raviraj, P., Sharif, H., Hempel, M., Ci, S., Ali, H. H., & Youn, J-H. (2005). A mobility based link layer approach for mobile wireless sensor networks. In 2005 IEEE International Conference on Electro Information Technology [1626974] (2005 IEEE International Conference on Electro Information Technology; Vol. 2005).

A mobility based link layer approach for mobile wireless sensor networks. / Raviraj, Prasad; Sharif, Hamid; Hempel, Michael; Ci, Song; Ali, Hesham H; Youn, Jong-Hoon.

2005 IEEE International Conference on Electro Information Technology. 2005. 1626974 (2005 IEEE International Conference on Electro Information Technology; Vol. 2005).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Raviraj, P, Sharif, H, Hempel, M, Ci, S, Ali, HH & Youn, J-H 2005, A mobility based link layer approach for mobile wireless sensor networks. in 2005 IEEE International Conference on Electro Information Technology., 1626974, 2005 IEEE International Conference on Electro Information Technology, vol. 2005, 2005 IEEE International Conference on Electro Information Technology, Lincoln, NE, United States, 5/22/05.
Raviraj P, Sharif H, Hempel M, Ci S, Ali HH, Youn J-H. A mobility based link layer approach for mobile wireless sensor networks. In 2005 IEEE International Conference on Electro Information Technology. 2005. 1626974. (2005 IEEE International Conference on Electro Information Technology).
Raviraj, Prasad ; Sharif, Hamid ; Hempel, Michael ; Ci, Song ; Ali, Hesham H ; Youn, Jong-Hoon. / A mobility based link layer approach for mobile wireless sensor networks. 2005 IEEE International Conference on Electro Information Technology. 2005. (2005 IEEE International Conference on Electro Information Technology).
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