A Blind Time-parameters Estimation Scheme for OFDM in Multi-path Channel
In this paper, a blind time-parameters estimation scheme for OFDM is proposed based on correlation property between useful symbol and cyclic prefix (CP) of an OFDM symbol. Without any prior information (including symbol rate and SNR level), the proposed scheme estimates useful time and symbol duration by two especially designed correlation algorithms, and then guard time can be worked out. The theoretical arguments and simulations show that the proposed time-parameters estimation algorithms for OFDM can obtain good performances in low SNR and multi-path channel conditions, and are robust in the presence of phase and frequency offsets.
OFDM time-parameters correlation property
Peng Liu Bing-bing Li Zhao-yang Lu Feng-kui Gong
National Key Lab.of ISN Xidian Univ.Xian, Shannxi, China 710071
国际会议
武汉
英文
222-227
2005-09-23（万方平台首次上网日期，不代表论文的发表时间）