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    "type": "line",
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    "yIncludeZero": false,
    "yLabel": "Spectral efficiency (bit/s/Hz)"
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    "title": "Estimated-CSI ZF rate relative to perfect-CSI ZF",
    "type": "line",
    "xLabel": "Channel SNR (dB)",
    "yIncludeZero": false,
    "yLabel": "Estimated / exact-channel ZF rate"
  }
}