DDRLD: directed diffusion routing supporting local detection for WSN
DDRLD:支持局部扩散的定向扩散算法

In the directed diffusion routing protocol,the intermediate nodes retransmit their received interest message to all of the neighbor nodes by flooding,which can bring about great power consumption to the network.This paper proposed a wireless sensor network data aggregation algorithm called directed diffusion routing supporting local detection(DDRLD).Firstly introduced the background of the research,then provided the analysis of DD,and pointed out the disadvantages of DD and to avoid the disadvantages,proposed DDRLD,in which by setting the maximum gradient diffusion depth and the minimum node remaining energy,the times for each node to retransmit interest message at the propagation stage were optimized.It focused on the simulation and the results analysis.The simulation results indicate that DDRLD greatly cuts down the average end-to-end delay of data message,reduces network power consumption and prolongs the network lifetime.