In energy harvesting directional sensor networks,node activation,sleeping scheduling and direction selection have a great influence on the target coverage and monitoring probability.Regarding the two cases of recharging speed being slow than discharging speed and recharging speed being fast than discharging speed,sequential Greedy Node Activation Scheme(SGA)and sequential Greedy Node Inactivation Scheme(SGI)are proposed.SGA scheme sequentially allocates the node which can bring the maximal coverage probabil...