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Minimum-phase fir precoder design for multicasting over MIMO frequency-selective channels

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Journal of Electronics (China)

Abstract

To maximize the throughput of frequency-selective multicast channel, the minimum-phase Finite Impulse Response (FIR) precoder design is investigated in this paper. This problem can be solved in two steps. Firstly, we focus on designing a nonminimum-phase FIR precoder under the criterion of maximizing the throughput, and develop two efficient algorithms for the FIR precoder design from perspectives of frequency domain and time domain. In the second step, based on the theory of spectral factorization, the nonminimum-phase FIR precoder is transformed into the corresponding minimum-phase FIR precoder by a classic iterative algorithm without affecting the throughput. Numerical results indicate that the achievable rate of the proposed design has remarkable improvement over that of existing schemes, moreover, the group delay introduced by the FIR precoder is minimized.

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Authors and Affiliations

  1. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, 230027, China

    Baisheng Du, Xiaodong Xu & Xuchu Dai

  2. Department of Electronic Engineering and Information Science, West Campus, University of Science and Technology of China, Hefei, 230027, China

    Baisheng Du

Authors
  1. Baisheng Du
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  2. Xiaodong Xu
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  3. Xuchu Dai
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Corresponding author

Correspondence to Baisheng Du.

Additional information

Supported by the National Natural Science Foundation of China (No. 61271272), the National Science and Technology Special Projects of China (No. 2012ZX03001007-002), and the National High Technology Research and Development Program of China (863 Program) (No. 2012-AA01A502).

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Du, B., Xu, X. & Dai, X. Minimum-phase fir precoder design for multicasting over MIMO frequency-selective channels. J. Electron.(China) 30, 319–327 (2013). https://doi.org/10.1007/s11767-013-3045-y

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  • DOI: https://doi.org/10.1007/s11767-013-3045-y

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