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Efficient Beam-Training Technique for Millimeter-Wave Cellular Communications

  • Ku, Bon Woo (Department of Electrical Engineering, Chung-Ang University) ;
  • Han, Dae Gen (Department of Electrical Engineering, Chung-Ang University) ;
  • Cho, Yong Soo (Department of Electrical Engineering, Chung-Ang University)
  • Received : 2014.11.07
  • Accepted : 2015.08.12
  • Published : 2016.02.01
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Abstract

In this paper, a beam ID preamble (BIDP) technique, where a beam ID is transmitted in the physical layer, is proposed for efficient beam training in millimeter-wave cellular communication systems. To facilitate beam ID detection in a multicell environment with multiple beams, a BIDP is designed such that a beam ID is mapped onto a Zadoff-Chu sequence in association with its cell ID. By analyzing the correlation property of the BIDP, it is shown that multiple beams can be transmitted simultaneously with the proposed technique with minimal interbeam interference in a multicell environment, where beams have different time delays due to propagation delay or multipath channel delay. Through simulation with a spatial channel model, it is shown that the best beam pairs can be found with a significantly reduced processing time of beam training in the proposed technique.

Keywords

References

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