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.
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
4. Beckwith, R., D. Teibel, and P. Bowen, "Unwired wine: Sensor networks in vineyards," Proc. IEEE Sensors, 561-564, Austria, 2004.
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
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
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.
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.
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
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
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
12. Seville, A., "Vegetation attenuation: Modelling and measurements at millimetric frequencies," Proc. Tenth International Conference on Antennas and Propagation, 5-8, Edinburg, 1997.
13. Savage, N., et al. "Radio wave propagation through vegetation: Factors in°uencing signal attenuation," Radio Science, Vol. 38, No. 5, October 2003.
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
15. ITU-R, Recommendation, P. 833-3, "Attenuation in vegetation,", 2001.
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.
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.
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
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
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.
23., http://sites.tnau.ac.in/trri/agro-advisory-unit/thanjavur, accessed August 2012.
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