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Volume 26 Issue 4
Apr.  2004
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Lu Jun-zhe, Zhang Hai-lin, Liu Zeng-ji. A Simple Differential Modulation Diversity in the Presence of Unknown Multipath[J]. Journal of Electronics & Information Technology, 2004, 26(4): 536-541.
Citation: Lu Jun-zhe, Zhang Hai-lin, Liu Zeng-ji. A Simple Differential Modulation Diversity in the Presence of Unknown Multipath[J]. Journal of Electronics & Information Technology, 2004, 26(4): 536-541.

A Simple Differential Modulation Diversity in the Presence of Unknown Multipath

  • Received Date: 2002-10-22
  • Rev Recd Date: 2003-04-30
  • Publish Date: 2004-04-19
  • Recent years, space-time coding technique is gotten more attention. However, the space-time coding application is often under non-frequeucy-selective channel while the channel knowledge is known. All of these constrains the application of space-time coding. This paper presents a differential modulation diversity used in the presence of unknown multi-path. The proposed technique utilizes orthogonal frequency division multiplexing (OFDM) transforming a frequency selective fading channel into multiple flat fading sub-channels. Based on this, a space-time-frequency configuration applied in unknown frequency selective fading channel is given. And this method is verified by the simulation results.
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