Minimizing the Energy Hole Problem in Wireless Sensor Networks by Normal Distribution of Nodes and Relaying Range Regulation

Energy hole problem is a crucial issue in wireless sensor network (WSN). Nodes near the sink region will die sooner from outer sub-regions because these nodes send their own data as well as forward outer sub-regions data to the sink. So after very short time energy hole comes near the sink region. After that, data cannot be transmitted to sink even though energy is still remained in outer region nodes which affects the lifetime of the network. In this paper we analyze jointly effect of normal distribution of nodes and relaying range regulation for data transmission so that the problem of energy hole will be minimized and lifetime of Wireless sensor network will be prolonged. Simulation experiments show the effectiveness of our approach.