V. Subashini, Rahul Krishnan, R. Amirthaganesan, E. Arul Manohar, C. Govardhan. 2020. “An Efficient Data Transmission Based on O-Leach OFDM Rule for Heterogeneous WSN”. International Journal of Advanced Science and Technology 29 (04), 3036 -. http://sersc.org/journals/index.php/IJAST/article/view/24128.