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本文提出了一种用于物联网(IoE)应用的超低功耗IEEE 802.11ah全数字极坐标发射机。该发射机支持1MHz/2MHz信道带宽，实现了1.3nJ/b的能效，适用于长距离、可扩展数据速率的无线通信。
Benjamin Busze, Jordy Gloudemans, Peter Vis, Johan Dijkhuis, Christian Bachmann, Guido Dolmans, Kathleen Philips, Harmke de Groot Holst Centre / imec, Eindhoven, The Netherlands This paper presents an ultra-low-power (ULP) IEEE 802.11ah fully-digital polar transmitter (TX). IEEE 802.11ah is a new Wi-Fi protocol optimized for Internetof-Everything (IoE) applications. Compared to other IoE standards like Bluetooth or ZigBee, its sub-GHz carrier frequency and mandatory modes with 1MHz/2MHz channel bandwidths allow devices to operate in a longer range with scalable datarates from 150kb/s to 2.1Mb/s. Moreover, the use of OFDM improves link robustness against fading, especially in urban environments, and achieves a higher spectral efficiency. The key design challenges of an IEEE 802.11ah TX for IoE applications are to meet the tight spectral mask and error-vector-magnitude (EVM) requirements as for conventional Wi-Fi standards (e.g., 802.11n/g), while
Ao Ba, Yao-Hong Liu, Johan van den Heuvel, Paul Mateman,