The system characteristics of 4G and
beyond 4G broadband mobile system (BMS) are
high data rate (throughput), low latency (delay),
high mobility (speed), and high capacity. The
current recognized 4G BMS needs to meet the
requirements specified by IMT-Advanced of
ITU-T. Those BMSs include
3GPP-LTE/LTE-Advanced and IEEE 802.16e/m
(WiMAX 1/WiMAX 2).