Journal of Applied Sciences ›› 2013, Vol. 31 ›› Issue (4): 353-360.doi: 10.3969/j.issn.0255-8297.2013.04.004

• Communication Engineering • Previous Articles     Next Articles

Performance of OFDM-CANC in a Frequency-Selective Fading Channel

WU Ai-ai1, ZHANG Zu-fan1,2, JIANG Hong-jun1   

  1. 1. School of Communications and Information Engineering, Chongqing University of Posts
    and Telecommunications, Chongqing 400065, china
    2. Key Laboratory of Mobile Communication Technology, Chongqing University of Posts
    and Telecommunications, Chongqing 400065, China
  • Received:2011-06-29 Revised:2011-09-13 Online:2013-07-27 Published:2011-09-13

Abstract:  Physical layer network coding is a promising technique for further improving spectral efficiency and network capacity of cooperative relay systems. OFDM is an efficient way to combat selective channel fading.In view of that, an orthogonal frequency division multiplexing-cooperative analog network coding (OFDMCANC)scheme is proposed, which uses network coding to improve the system spectral efficiency, and uses OFDM to cope with channel distortion. An optimal system power allocation method based on the scheme is also presented. Theoretical analysis and simulation results show that the proposed scheme can improve frequency selective fading of the channel.

Key words: network coding, cooperative relay, frequency-selective fading, orthogonal frequency division multiplexing(OFDM)

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