| 摘要 |
A subcarrier control method in an OFDM system for optimizing transmission power in a transmitting end equipped with a directivity multiple antenna is provided to minimize power consumption by utilizing the scalability of the OFDM. A performance related parameter is exchanged in a transmitting end. The number of data subcarriers is controlled and is converted into a mobile physical mode in the transmitting end. Data are transmitted through the controlled data subcarrier to the multiple antenna of a computer(A). The pilot is allocated to the controlled data subcarrier. The transmission power is controlled by the power level corresponding to data unit carrier wave counts. |
