Journal of Beijing University of Posts and Telecommunications

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JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM

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An OFDM System Using PRE-FFT Combination Receive Technique 

    

  1. Telecommunication Engineering School, Beijing University of Posts and Telecommunications, Bejing 100876, China
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Abstract: An OFDM system using pre-FFT combination receiving technique is proposed. The analysis and computer simulation results of the system over wireless rayleigh fading channel show that the system performance can be improved a lot. While the number of receiving antenna is increased to two, the number of FFT operation can hold. This implies that in fact equivalent reduction in processing complexity of receiver is obtained.

Key words: OFDM, antenna diversity, MRC

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