Title :
An improved beamformer for OFDM system with adaptive antenna array
Author :
Li, Yu ; Gu, Yujie ; Ren, Wang ; Chen, Kangsheng
Author_Institution :
Dept. of Inf. & Electron. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
In wireless communication system, orthogonal frequency division multiplexing (OFDM) can be used with multiple antennas to achieve both frequency diversity and space diversity. Many methods have been proposed to decide the weight set for beamformer. In this paper, we proposed an improved method to derive the weight set by exploiting the virtual sub-carriers effectively. Computer simulation results show its good performance compared to the method based on the pilot sub-carriers only.
Keywords :
OFDM modulation; adaptive antenna arrays; diversity reception; radio networks; OFDM system; adaptive antenna array; beamformer; frequency diversity; multiple antennas; orthogonal frequency division multiplexing; space diversity; virtual subcarriers; weight set; wireless communication system; Adaptive arrays; Adaptive systems; Antenna arrays; Array signal processing; Frequency domain analysis; Interference; OFDM; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9335-X
DOI :
10.1109/WCNM.2005.1544032
