Growing greener 3G basestations

摘要

Mobile consumers are now demanding bandwidths comparable to those that can be achieved in a fixed location. 3G networks based on W-CDMA, and other new wireless technologies such as WiMAX, provide mobile consumers with this high bandwidth connectivity, but all these newer systems have one major weakness - as spectrum efficiency improves through the use of more complex modulation systems, the efficiency of the power amplifier (PA) in the basestation is dramatically reduced, with significant implications for overall power consumption.