Title :
An Interpolation-Based Beamforming Scheme for OFDM Systems
Author :
Li Ping´an ; Qin, Sun
Author_Institution :
Wuhan Technol. Univ.
Abstract :
In this paper, a simple and efficient post-fast-Fourier-transform (FFT) beamforming scheme for OFDM systems is proposed. The carriers are uniformly divided into several groups in the proposed scheme. For each group, only one beamforming weight is calculated by using the pilot-based channel estimate in the frequency-domain. The remaining weights are linearly interpolated by using the pilot-based weighs. Compared to the existing techniques, the proposed approach exhibits computational simplicity with efficient performance
Keywords :
OFDM modulation; antenna arrays; channel estimation; fast Fourier transforms; interpolation; OFDM systems; interpolation-based beamforming scheme; orthogonal frequency division multiplexing; pilot-based channel estimate; post-FFT beamforming; post-fast-Fourier-transform beamforming; AWGN; Antenna arrays; Array signal processing; Computational efficiency; Filtering; Interpolation; OFDM; Receiving antennas; Sun; Transmitters;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.60
