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Efficient Uniform Channel Quantization of Sparse CIR for Downlink OFDM Systems

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Academic year: 2021

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Fig. 1 Generic block diagram of the considered MISO multi-user system
Table 1 Number of quantization bits required for the discussed quantization strategies for one OFDM block: RVQ and UQ (quantization of all the CFR samples), P-RVQ and P-UQ (quantization of just part of the samples)
Fig. 2 MSE of CFR quantization in function of clipping value, for several number of quantization bits for channel 1
Fig. 3 MSE of CFR quantization in function of clipping value, for several number of quantization bits for channel 2 0 10 20 30 40 50 60 70 80 90 10000.10.20.30.40.50.60.70.80.91|h[n]| n original reconstructed
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