Node Location of Wireless Sensor Networks Based on Motion Vector

The paper introduces the common classification of wireless sensor,and proposes a range-free algorithm: motion node location algorithm of Wireless Sensor Networks(WSM) based on Motion Vector(MV).It uses received signal strength getting unknown nodes region,uses node movements orientation vector to reduce the scope of the region,and estimates location based on MV to improve accuracy.The algorithm is simulated and concluded.With the convex programming method for comparison,simulation results show that it has higher positioning accuracy.