Device and method for compensating for phase distortion in base station of OFDMA-based cellular system

作者: Young-Hoon Kim , Youn-Ok Park

DOI:

关键词:

摘要: Disclosed is a device and method for compensating phase distortions in base station of an OFDMA-based cellular system. The comprises receiving OFDM symbols from plurality mobile stations, canceling symbol guard interval using reference timing signal, performing FFT (fast Fourier transform) process on the symbols; dividing that have undergone processing into subchannel groups stations; restoring phases divided groups; channel estimation equalization restored each to thereby perform demodulation process.

参考文章(12)
M. Speth, F. Classen, H. Meyr, Frame synchronization of OFDM systems in frequency selective fading channels vehicular technology conference. ,vol. 3, pp. 1807- 1811 ,(1997) , 10.1109/VETEC.1997.605870
Hanli Zou, B. McNair, B. Daneshrad, An integrated OFDM receiver for high-speed mobile data communications global communications conference. ,vol. 5, pp. 3090- 3094 ,(2001) , 10.1109/GLOCOM.2001.965995
L. Hazy, M. El-Tanany, Synchronization of OFDM systems over frequency selective fading channels vehicular technology conference. ,vol. 3, pp. 2094- 2098 ,(1997) , 10.1109/VETEC.1997.605967
R. Nogueroles, M. Bossert, A. Donder, V. Zyablov, Improved performance of a random OFDMA mobile communication system vehicular technology conference. ,vol. 3, pp. 2502- 2506 ,(1998) , 10.1109/VETEC.1998.686210
Silvano Pupolin, Nicola Laurenti, Andrea M. Tonello, On the Effect of Time and Frequency Offsets in the Up-link of an Asynchronous Multi-user DMT OFDMA System international conference on telecommunications. ,vol. 1, pp. 614- 618 ,(2000)
H. Sari, Y. Levy, G. Karam, An analysis of orthogonal frequency-division multiple access global communications conference. ,vol. 3, pp. 1635- 1639 ,(1997) , 10.1109/GLOCOM.1997.644417