volume | PIER Journals

Abstract

This work presents results for the path loss due to foliage at 2.4 GHz using RF equipment and XBee-PRO ZB S2B transceiver modules in Agricultural fields (Corn, Paddy and Groundnut) and Gardens (Coconut garden with green grass, open lawn with dry green grass and wet green grass) targeting short-range, near ground RF propagation measurements for planning and deployment of Wireless Sensor Communications for precise agriculture and plantation management applications. Path Loss (PL), Path Loss Exponent (PLE) and corresponding Root Mean Square Error (RMSE) values were deduced from the measured RSS from various positions in these environments. Empirical foliage loss prediction models such as COST 235, Early ITU Vegetation and Weissberger models were compared with the experimental results.

1. Akyildiz, I. F. and M. C. Vuran, Wireless Sensor Networks, John Wiley and Sons Ltd., 2010.
doi:10.1002/9780470515181

2. Cook, D. J. and S. K. Das, "Smart Environments: Technology, Protocols and Applications," Wiley, Hoboken, 2004. Google Scholar

3. Tamir, T., "On radio-wave propagation in forest environments," IEEE Transactions on Antennas and Propagation, Vol. 15, No. 6, 806-817, 1967.
doi:10.1109/TAP.1967.1139054 Google Scholar

4. Beckwith, R., D. Teibel, and P. Bowen, "Unwired wine: Sensor networks in vineyards," Proc. IEEE Sensors, 561-564, Austria, 2004. Google Scholar

5. Burrell, J., T. Brooke, and R. Beckwith, "Vineyard computing: Sensor networks in agricultural production," IEEE Pervasive Computing, Vol. 3, No. 1, 38-45, 2004.
doi:10.1109/MPRV.2004.1269130 Google Scholar

6. Wang, N., N. Zhang, and M. Wang, "Wireless sensors in agriculture and food industry-recent development and future perspective," Computers and Electronics in Agriculture, Vol. 50, No. 1, 1-14, 2006.
doi:10.1016/j.compag.2005.09.003 Google Scholar

7. Wang, N., Z. Li, A. Franzen, and P. Taher, "Development of wireless sensor network for precision agriculture applications," Proc. the CIGR International Symposium of the Australian Society for Engineering in Agriculture, 414-421, Brisbane, Queensland, Australia, 2009. Google Scholar

8. Andrade-Sanchez, P., F. J. Pierce, and T. V. Elliott, "Performance assessment of wireless sensor networks in agricultural settings," Proc. ASABE Annual International Meeting, Minneapolis, Minnesota, 2007. Google Scholar

9. Wark, T., P. Corke, P. Sikka, L. Klingbeil, Y. Gao, C. Crossman, P. Valencia, D. Swain, and G. Bishop-Hurley, "Transforming agriculture through pervasive wireless sensor networks," IEEE Pervasive Computing, Vol. 6, No. 2, 50-57, 2007.
doi:10.1109/MPRV.2007.47 Google Scholar

10. Schwering, F. K., E. J. Violette, and R. H. Espeland, "Millimeter-wave propagation in vegetation: Experiments and theory," IEEE Transactions on Geoscience and Remote Sensing, Vol. 26, No. 3, 355-367, 1988.
doi:10.1109/36.3037 Google Scholar

11. Al-Nuaimi, M. O. and A. M. Hammoudeh, "Measurements and prediction of attenuation and scatter of microwave signals by trees," IEE Proceedings Microwaves, Antennas and Propagation, Vol. 141, No. 2, 70-76, 1994.
doi:10.1049/ip-map:19949840 Google Scholar

12. Seville, A., "Vegetation attenuation: Modelling and measurements at millimetric frequencies," Proc. Tenth International Conference on Antennas and Propagation, 5-8, Edinburg, 1997. Google Scholar

13. Savage, N., et al. "Radio wave propagation through vegetation: Factors in°uencing signal attenuation," Radio Science, Vol. 38, No. 5, October 2003. Google Scholar

14. Wang, F. and K. Sarabandi, "An enhanced millimeter-wave foliage propagation model," IEEE Transactions on Antennas and Propagation, Vol. 53, No. 7, 2138-2145, 2005.
doi:10.1109/TAP.2005.850704 Google Scholar

15. ITU-R, Recommendation, P. 833-3, "Attenuation in vegetation,", 2001. Google Scholar

16. Weissberger, , M., R. Meidenbauer, H. Riggins, and S. Marcus, "Radiowave propagation: A handbook of practical techniques for computing basic transmission loss and field strength,", 369, ECAC, Annapolis, Maryland, 1982. Google Scholar

17. Seybold, J. S., Introduction to RF Propagation, John Wiley, 2005.
doi:10.1002/0471743690

18. COST 235 "Radio propagation effects on next-generation fixed-service terrestrial telecommunication systems,", Final Report,Luxembourg, 1996. Google Scholar

19. Rappaport, T. S., Wireless Communications: Principles and Practice, Prentice Hall PTR, 2002.

20. Ndzi, D. L., M. Kamarudin, A. A. Muhammad Ezanuddin, A. Zakaria, R. B. Ahmad, M. F. B. A. Malek, A. Y. M. Shakaff, and M. N. Jafaar, "Vegetation attenuation measurements and modeling in plantations for wireless sensor network planning," Progress In Electromagnetics Research B, Vol. 36, 283-301, 2012.
doi:10.2528/PIERB11091908 Google Scholar

21. Teschl, , F., et al. "Attenuation of spruce, pine and deciduous woodland at C-band," IEEE Antennas and Wireless Propagation Letters, Vol. 11, 109-112, 2012.
doi:10.1109/LAWP.2012.2184253 Google Scholar

22. Li, S. and H. Gao, "Propagation characteristics of 2.4 GHz wireless channel in cornfields," Proc. 13th IEEE International Conference on Communication Technology, 136-140, Jinan, 2011. Google Scholar

23., http://sites.tnau.ac.in/trri/agro-advisory-unit/thanjavur, accessed August 2012. Google Scholar

24. Meng, Y. S., Y. H. Lee, and B. C. Ng, "Study of propagation loss prediction in forest environment," Progress In Electromagnetics Research B, Vol. 17, 117-133, 2009.
doi:10.2528/PIERB09071901 Google Scholar

Dr. Balachander Dhanavanthan

Professor Thipparaju Rama Rao

Dr. Govindaraju Mahesh