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10.4 A 4×4 Dual-Band Dual-Concurrent WiFi 802.11ax Transceiver with Integrated LNA, PA and T/R Switch Achieving +20dBm 1024-QAM MCS11 Pout and −43dB EVM Floor in 55nm CMOS

The new WiFi 11ax standard carries several improvements compared to its 11g/ac predecessor. It supports multi-user MIMO and uses OFDMA modulation, which enables users to share the same channel via allocated Resource Units (RU). In addition, it provides transmit power adjustments for better operation...

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Bibliographic Details
Main Authors: Lu, Eric, Li, Wen-Kai, Deng, Zhiming, Rostami, Edris, Wu, Pi-An, Chang, Keng-Meng, Chuang, Yu-Chen, Lai, Chang-Ming, Chen, Yang-Chuan, Peng, Tzu-Hsuin, Tsai, Tzung-Chuen, Liu, Hui-Hsien, Chiu, Chien-Chih, Huang, Bryan, Wang, Yao-Chi, Zhan, Jing-Hong Conan, Shanaa, Osama
Format: Conference Proceeding
Language:English
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Summary:The new WiFi 11ax standard carries several improvements compared to its 11g/ac predecessor. It supports multi-user MIMO and uses OFDMA modulation, which enables users to share the same channel via allocated Resource Units (RU). In addition, it provides transmit power adjustments for better operation in a dense environment. Furthermore, the standard calls for the support of MCS11 1024-QAM modulation with target transmit (TX) EVM of −35dB, which results in nearly 25% higher throughput compared to MCS9 256QAM. In order to improve user experience to guarantee signal quality between walls and obstacles, a
ISSN:2376-8606
DOI:10.1109/ISSCC19947.2020.9063127