2IEEE 802. 15.4 2003 : Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low- Rate Wireless Personal Area Networks (LR- WPANs).
3Iranli A, Maleki M, Pedram M. Energy efficient strategies for deployment of a two - level wireless sensor network. Low Power Electronics and Design, 2005. ISLPED 05. Proceedings of the 2005 International Symposium on 8 - 10 Aug. 2005 : 233 - 238.
4Bachir A, Barthel D. Localized max -rain remaining energy routing for WSN using delay control, 2005 IEEE International Conference on Communications , 2005 ( 5 ) : 3302 - 3306.