The AN104 more or less provides a guideline on how to implement the powersave features and what are the necessary steps for doing so. If you want to maintain connection to the radio and enable all the powersave mechanisms, you can run the tcp_client_powersave application which demonstrates the wifi powersave features in between the TCP connections and do the necessary hardware modifications as mentioned in AN 104 to get your own measurements. I tested the same on 43907 and the current consumption for the same application was around 73 mA. You can read more about powersave features of 43907 in an updated App Note, located inside the doc folder of WICED SDK. As I understand, if you want to read up more about power-save multipoll, you can follow the IEEE spec and try to implement the same on 4343W. For now, WMM-PS, PSMP schemes are not implemented in WICED SDK.