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

摘要

The present invention relates to an interference avoiding method of transmitting data in a frequency hopping OFDMA system, a home cell base station to the terminal by using the terminal and collects the status information of the wireless environment, from the neighboring base station, and collects the status information determining whether moving low-speed or a high speed, and by using the collected status information according to the moving speed of the terminal time-estimating the frequency grid by CINR, and compares the estimated CINR with a predetermined modulation mode by the threshold CINR, the comparison result according to the time-frequency grid to determine the number of transmission bits, and transmits allocation information as the bit number of the transmission bits to the terminal, the terminal performs modulation and demodulation in accordance with the received bit allocation information. ; Frequency hopping orthogonal frequency division multiplexing, frequency hopping pattern, the adaptive modulation, the time-frequency grid