The increasing use of mobile devices in wireless environments led to many studies about power-aware algorithms and protocols to improve the lifetime of device's battery. This paper studies the implementation and testing of a new power-aware algorithm, PSWA, associated with a Cache System, and tested with the WRP routing protocol, in a Mobile Ad hoc Network scenario. A scheme that does not use the sleep schedule for the nodes it was used; nodes automatically fall asleep if they do not deal with data and routes. In the simulation scenario the WRP was chosen because it has a better performance in real-time traffic, and this type of traffic is commonly used today. The simulation results show an important decrease in energy consumption close to 10% with the association of the new power-aware algorithm. © 2010 IEEE.