Energy-Efficient Hybrid Precoding Scheme Based on Antenna Selection Technology in Massive Multiple-Input Multiple-Output Systems

Algorithm 1

The proposed antenna selection scheme.

Input: the number of transmit antenna , the power consumption of digital analog, converter, filter, synthesizer, low-noise amplifier, the intermediate-frequency amplifier, and the analog digital amplifier: , , , , , , the transmit power p, channel matrix .

Initialization:

 1: for do

 2:   Calculate:

 3:   Update ;

 4:   ;

 5: end for

 6: Sort in a descend order as:

 7: Setting

 8: Setting

 9: Sort in a descend order as

 10:

 11: Output: