›› 2011, Vol. 24 ›› Issue (5): 4-.

• Articles • Previous Articles     Next Articles

Time-Frequency Beam Forming Based on the OFDM System

 HAN Shuang-Lin, CHEN Jian-Chun   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071,China)
  • Online:2011-05-15 Published:2011-05-19

Abstract:

The combination of smart antennas and OFDM can improve the system performance.The paper first introduces two beam forming algorithms in OFDM-Smart Antennas system: time beam forming and frequency beam forming,then proposes  the time-frequency beam forming algorithm,and finally simulates and compares the three algorithms.The result shows that the time-frequency beam forming algorithm has better performance than the time beam forming in the multiple-path environment.Compared with the frequency beam forming algorithm,the time-frequency beam forming algorithm has a greatly simplified structure and is easy to implement.

Key words: smart antennas;OFDM;beam forming;FFT

CLC Number: 

  • TN821+.91