K.Maheswri,S.Kirubakaran, S.Karthik. Lifetime Improvement of Wireless Sensor Networks by Using Sleep-Wake Scheduling and Any Cast Packet Forwarding Scheme, International Journal of Computing Algorithm, Vol. 2, Issue 1, 2013, pp. 24-26, DOI: 10.20894/IJCNES.103.002.001.007, ISSN: 2278-2397