Variable Is Better Than Invariable: Sparse VSS-NLMS Algorithms with Application to Adaptive MIMO Channel Estimation

<table>MISO channel estimation at <svg height="13.0875" id="M59" style="vertical-align:-3.13504pt" version="1.1" viewbox="0 0 15.425 13.0875" width="15.425" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>th antenna of the receiver.</table>

The Scientific World Journal

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Figure 4

Figure 4: Variable Is Better Than Invariable: Sparse VSS-NLMS Algorithms with Application to Adaptive MIMO Channel Estimation 