 We further design model-based algorithms for power-minimization and network lifetime maximization which compute the optimal transmit power per node, along a QoS-constrained path. Our numerical study shows an overall transmit power savings of up to 95\% when compared to a fixed power allocation .
<clarity>  We further design model-based algorithms for power-minimization and network lifetime maximization which compute the optimal transmit power per node, along a QoS-constrained path. Our numerical study shows an overall transmit power savings of up to 95\% when compared to a fixed power allocation .
 Our analysis shows an overall transmit power savings of up to 95\% when compared to a fixed power allocation .