INTERFERENCE-FREE DATA TRANSMISSION METHOD FOR FH-OFDM BASED MOBILE COMMUNICATION SYSTEM

摘要

The present invention is a terminal using as the home cell base station collects information on the status of the wireless environment from the subscriber station and the neighbor base stations, collects the state information on the interference avoiding method of transmitting data in a frequency hopping Orthogonal Frequency Division Multiple Access system to compare the estimated frequency grid by CINR, and comparing the threshold CINR by the estimated CINR with a predetermined modulation mode, and the results determined that the movement at a low speed or high speed, by using the collected status information according to the moving speed of the terminal time and according to the time-frequency grid to determine the number of transmission bits, and transmitting the number of transmission bits as the bit allocation information to the terminal, and performs modulation and demodulation in accordance with the terminal receives the bit allocation information.