Abstract: Two WSN-oriented protocols viz.power-controlled routing (PCR) and its enhanced version,i.e.enhanced power-controlled routing (EPCR) were presented in this paper,In both the protocols,fixed transmission power is employed in the clustering phase but when ordinary nodes are about to send their data to their respective cluster-heads,they change their transmission power according to their distance from their cluster-head.While in PCR,the nodes are associated with the cluster-head on the basis of weight,in EPCR it is done on the basis of distance.In addition to the protocols,we are suggesting a packet loss recovery mechanism for the PCR and EPCR.Simulation results show that both protocols work well for mobile and static networks in achieving high packet delivery ratio,high network throughput and high network lifetime by using variable transmission powers and smart clustering.