吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (3): 981-987.doi: 10.13229/j.cnki.jdxbgxb201703040

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Precoding design to achieve capacity bound in inter-symbol-interference fading channels

HAN Wei-liang, GE Jian-hua, MA Bo, GAO Yang   

  1. State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, 710071, China
  • Received:2016-01-13 Online:2017-05-20 Published:2017-05-20

Abstract: A novel precoding scheme is proposed with perfect Channel State Information at Transmitter (CSIT), which only takes one precoding and one Minimum Mean Square Error (MMSE) equalization at the transmitter and the receiver, respectively. Thus, the full diversity gain is obtained and the instant channel capacity approaches to the performance of Single-Carrier Frequency Domain Equalization (SC-FDE) in Gaussian channel. First, a theoretical mutual information bound between the transmitter and the receiver is presented based on the SC-FDE system with MMSE receiver. The, the precoding scheme is designed to achieve this bound. Through theoretical analysis, a closed-form expression on the outage probability of the system is derived. Simulation results demonstrate that the proposed scheme can reduce the outage probability of the traditional MMSE system by 2~3 dB and the instant channel capacity approaches to the performance of SC-FDE in Gaussian channel.

Key words: communication technology, single carrier frequency domain equalization (SC-FDE), minumum mean square error (MMSE), precoding

CLC Number: 

  • TN929.53
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