An Effective Method to Reduce Sensibility to CFO in OFDM

作者：Ding LiYa^*; Hou ChunPing; Wang ZhaoHua

来源：Wireless Personal Communications, 2011, 57(4): 671-679.

DOI：10.1007/s11277-009-9868-z

• All phase method
• Carrier frequency offset
• Intercarrier interference
• Orthogonal frequency division multiplexing

For orthogonal frequency-division multiplexing (OFDM) communication systems, the carrier frequency offset (CFO) in mobile radio channels distort the orthogonality between subcarriers resulting in intercarrier interference (ICI). This paper studies an efficient scheme termed all phase method to combat ICI. The method is implemented by introducing all phase concept into standard OFDM system. By numerical calculations, ICI coefficients with all phase method are much smaller than that of standard OFDM. Simultaneously, in the present of CFO, simulation results exhibit the proposed method makes more remarkable improvement in BER performance. Therefore, all phase method is effective to reduce sensibility to CFO.

• 出版日期2011-4
• 单位天津大学