The wireless sensor networks WSNs can be implemented in order to provide a good monitoring solution or an area. A lot of physical quantities can be monitored and processed. The radiometry field is so important that it should be permanently monitored. The sensors, in a WSN, may be empowered through an energy harvesting tool that can increase their lifetime. This manuscript is concerned with the study of sensors, which are energy harvested, that can monitor radiometry field in an environment. In this manuscript, the authors try to increase the downlink harvesting power for the sensors. Moreover, they try to increase the uplink spectral efficiency SE of the sensor. Furthermore, a power control algorithm is applied in order to optimize the anchor nodes transmission power “downlink power". Through the existing proposal, there is a goal to increase the sensor downlink power through coherent energy harvesting models. In addition, there is a trial to reduce and optimize the energy consumption through applying modern routing and coding schemes. The applied coding technique, which is the trellis coded modulation TCM, can improve the signal to noise ratio SNR that results in more SE improvement.