Low-complexity joint transmit/receive antenna selection method for mimo systems

A method for selecting low-complexity Tx/Rx antennas in a MIMO(Multi-Input Multi-Output) system is provided to enhance characteristics of the MIMO system and remarkably reduce its complexity, thereby minimizing the deterioration of performance. In a method for selecting low-complexity Tx/Rx antennas in a MIMO system, a gain matrix of Rx channels is generated. A norm calculation process for obtaining a channel gain norm value from each of the rows and columns of the created Rx channel gain matrix is performed. The first antenna selection process for selecting an antenna having the maximum channel gain norm value among the obtained channel gain norm values is performed. And then, the second antenna selection process for alternately selecting Tx/Rx antennas having the maximum channel gain value among channel gain values of the selected antenna is repeatedly performed until the desired number of antennas is selected.