论文部分内容阅读
针对OFDMA系统对频率偏移敏感的特性,在频率偏移估计的基础上重点研究了多小区OFDMA系统的频率偏移的补偿算法。就三个小区的情形,利用频域和时域两种补偿算法对其基站频率偏移做了小数位的补偿。仿真结果表明:频域补偿的效果比时域补偿好,而作为一种新的尝试,时域补偿所涉及的计算量减小了很多。
Aiming at the characteristics of OFDMA system which are sensitive to frequency offset, the frequency offset estimation algorithm based on frequency offset estimation is mainly studied. In the case of three cells, the base station frequency offset is compensated by the fractional digit using two compensation algorithms in the frequency domain and the time domain. The simulation results show that the effect of frequency domain compensation is better than that of time domain, and as a new attempt, the time-domain compensation involves much less computation.