Digital predistortion using piecewise memory polynomial for 802.11 WiFi applications
Digital predistortion using piecewise memory polynomial for 802.11 WiFi applications
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DOI：
10.1109/icsee.2016.7806082
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发表时间：
2016-11
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影响因子：
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通讯作者：
Tomer Gidoni;E. Socher;E. Cohen
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文献类型：
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作者：
Tomer Gidoni;E. Socher;E. Cohen
我们演示了基于分段记忆多项式的预失真器在WiFi(802.11)应用中的应用。采用单结点二阶非线性分段记忆多项式，EVM为-38dB，ACLR为-35.4dBc。实验结果表明，与5阶非分段记忆多项式预失真器相比，MASK、EVM和非线性地板预失真器具有相当的性能。所提出的实时数字预失真仅使用非分段预失真器的12个乘法器与30个乘法器，从而降低了硬件实现的复杂性。
We demonstrate piecewise memory polynomial based predistorter for WiFi (802.11) applications. EVM of -38dB and ACLR of -35.4dBc were achieved with 2nd order nonlinearity piecewise memory polynomial with a single knot. Experimental results, comparing mask, EVM and nonlinear floor, show on-par performance to 5th order non-piecewise memory polynomial predistorter. The suggested real-time digital predistortion utilizes only 12 multipliers versos 30 of the non-piecewise predistorter, thus lowering the complexity of hardware implementation.