摘要
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。
Due to the sensitivity of OFDMA systems to frequency offset, two algorithms for compensating frequency offset are investigated on the basis of estimating frequency offset. For the three-cell case, the frequency offset of base stations in OFDMA systems is compensated up to some decimal places via two algorithms--the frequency domain one and the time domain one. The simulation results show that the former algorithm is more effective than the latter, while as a new way the latter has much less amount of calculations.
出处
《电子技术（上海）》
2013年第8期8-10,4,共4页
Electronic Technology
基金
曲阜师范大学科研基金项目(XJ201223)
山东省优秀中青年科学家科研奖励基金资助项目(BS2010DX012)
