Code distribution algorithm based on ring tree clustering structure for WSN

The existing code distribution protocol is analyzed in reprogramming for wireless sensor network oriented controlled flooding and it produces redundant information copies and causes too much energy consumption. A code distribution algorithm for wireless sensor network based on ring tree clustering structure is proposed to improve performance for the existing reprogramming algorithm. It divides the distribution of sensor nodes into the equidistant circular ring as the center of sink. Every ring selects cluster head for the own probability. Outer ring cluster and member nodes acquire the new code through the inner ring cluster heads as transit router. Cluster heads rotate to balance the energy consumption between the nodes. Performance analysis and simulation experiment shows that the new algorithm provides higher energy efficiency and longer lifetime.