V. Thattil and N. Vasantha. “Energy Efficient Approach to Intruder Detection in Militarily Sensitive Border Using Wireless Sensor Networks,” IEEE Conference on Electronics Computer Technology, 2011.
 D. Yuping, H. Chang, Z. Zou and S. Tang, “Energy Aware Routing Algorithm for WSN Applications in Border Surveillance,” 2010 IEEE International Conference on Technologies for Homeland Security, Wltham, 8-10 November 2010, pp. 530-535.
 T. Arampatzis, J. Lygeros and S. Manesis, “A Survey of Applications of Wireless Sensors and Wireless Sensor Networks,” 13th Mediterranean Conference on Control and Automation Limassol, Cyprus, 27-29 June 2005, pp. 889-895.
 D. Abruzzese, M. Angelaccio, B. Buttarazzi, R. Giuliano, L. Miccoli and A. Vari, “Long Life Monitoring of Historical Monuments via Wireless Sensors Network,” 6th International Symposium on Wireless Communication Systems, Tuscany, 7-10 September 2009.
 I. Stoianov, L. Nachman and S. Madden, “PIPENET: A Wireless Sensor Network for Pipeline Monitoring,” The 6th International Conference on Information Processing in Sensor Networks (IPSN’07), Cambridge, 25-27 April 2007.
 T. Wark, P. Corke, P. Sikka, L. Klingbeil, Y. Guo, C. Crossman, P. Valencia, D. Swain and G. Bishop-Hurley, “Transforming Agriculture through Pervasive Wireless Sensor Networks,” IEEE Pervasive Computing, White Plains, 19-23 March 2007. doi:10.1109/MPRV.2007.47
 V. Gungor, L. Bin and G. Hancke, “Opportunities and Challenges of Wireless Sensor Networks in Smart Grid,” IEEE Transactions on Industrial Electronics, Vol. 57, No. 10, 2010, pp. 3557-3564. doi:10.1109/TIE.2009.2039455
 J. Rice, et al., “Maritime Surveillance in the Intracoastal Waterway Using Networked Underwater Acoustic Sensors Integrated with a Regional Command Center,” 2010 International Waterside Security Conference (WSS), Carrara, 3-5 November 2010, pp. 1-6.
 T. He, S. Krishnamurthy, J. A. Stankovic, T. Abdelzaher, L. Luo, R. Stoleru, T. Yan, L. Gu, J. Hui and B. Krogh, “An Energy-Efficient Surveillance System Using Wireless Sensor Networks,” 2nd International Conference on Mobile Systems, Applications and Services, Boston, 6-9 June 2004.
 P. Rothenpieler, D. Kruger, D. Pfisterer, S. Fischer, D. Dudek, C. Haas, A. Kuntz and M. Zitterbart, “Flegsens: Secure Area Monitoring Using Wireless Sensor Networks,” Proceedings of the 4th Safety and Security Systems in Europe, 2009.
 E. Felemban, S. Vural, et al., “SAMAC: A Cross-Layer Communication Protocol for Sensor Networks with Sectored Antennas,” IEEE Transactions on Mobile Computing, Vol. 9, No. 8, 2010, pp. 1072-1088. doi:10.1109/TMC.2010.61
 E. Felemban, C. Gun and E. Ekici, “MMSPEED: Multipath Multi-SPEED Protocol for QoS Guarantee of Reliability and Timeliness in Wireless Sensor Networks,” IEEE Transactions on Mobile Computing, Vol. 5, No. 6, 2006.
 Y. T. Hou, T. C. Lee, B. C. Jeng and C. M. Chen, “Optimal Coverage Deployment for Wireless Sensor Networks,” The 8th International Conference on Advanced Communication Technology, Phoenix Park, 20-22 February 2006.
 J. He and H. Shi, “Constructing Sensor Barriers with Minimum Cost in Wireless Sensor Networks,” Journal of Parallel Distributed Computing, Vol. 72, No. 12, 2012, pp. 1654-1663. doi:10.1016/j.jpdc.2012.07.004