论文信息 - Accurate Channel Identification with Time-Frequency Interferometry for OFDM

Accurate Channel Identification with Time-Frequency Interferometry for OFDM

In OFDM systems, the pilot signal averaging channel estimation is generally used to identify the channel state information (CSI). In this case, large pilot symbols are required for obtaining an accurate CSI. As a result, the total transmission rate is degraded due to large number of pilot symbols transmission. To reduce this problem, in this paper, we propose time-frequency interferometry (TFI) for OFDM to achieve an accurate CSI.

Chang-Jun Ahn

[1] J.A.C. Bingham,et al. Multicarrier modulation for data transmission: an idea whose time has come , 1990, IEEE Communications Magazine.

[2] Hiroshi Harada,et al. A Carrier Interferometry based Channel Estimation Technique for One-Cell Reuse MIMO-OFDM/TDMA Cellular Systems , 2006, 2006 IEEE 63rd Vehicular Technology Conference.

[3] Leonard J. Cimini,et al. Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing , 1985, IEEE Trans. Commun..

[4] Hiroshi Harada,et al. A Channel Estimation Technique for Dynamic Parameter Controlled - OF/TDMA Systems , 2005, 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications.

[5] Iwao Sasase,et al. The effects of modulation combination, target BER, Doppler frequency, and adaptation interval on the performance of adaptive OFDM in broadband mobile channel , 2002, IEEE Trans. Consumer Electron..

[6] V. Roman,et al. Broadband wireless access solutions based on OFDM access in IEEE 802.16 , 2002 .