Achieving power-law placement in wireless sensor networks

One of the most important issues in sensor networks is to develop the technology for improved fault tolerance. From this viewpoint, the placement of sensor nodes is critical. To date, we have proposed stochastic node placements whose degrees of nodes follow a power-law ("power-law placement"). To demonstrate the effectiveness of power-law placement, we have to show that this placement has high fault tolerance and can be achieved with a reasonable degree of complexity and accuracy. In the first step of our research, we have shown that power-law placement with well-tuned parameters is more robust against failure than general stochastic node placement. In the second step to prove the effectiveness of power-law placement, we investigate ways of achieving power-law placement in this paper.