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该论文提出了一种用于8Gb/s 60GHz接收机的混合信号32抽头RX-FFE和100抽头DFE，解决了非视距（NLOS）环境下多径干扰导致的符号间干扰（ISI）问题，实现了低功耗、高速率的无线通信。
The 60GHz band has opened the opportunity for multi-Gb/s wireless communications, and is being commercially supported by transceiver solutions utilizing the WirelessHD and/or WiGig standards. However, the hundreds of mWs of power consumption associated with today’s digital basebands (e.g. [1]) poses a significant barrier to adoption in mobile devices. Mixed-signal basebands have therefore been proposed and demonstrated [2] as an energy efficient (~50mW) solution for sample rates of up to 5GS/s. However, such mixed-signal designs have so far been incapable of handling non-line-of-sight (NLOS) channels with pre-cursor inter-symbol interference (ISI) and extended channel delay spreads of >10ns. This work therefore presents the design of an efficient receive-side feedforward equalizer (Rx-FFE) for pre-cursor ISI cancelation and a long decision feedback equalizer (DFE) that can efficiently handle NLOS interference profiles.
Chintan Thakkar1,2, Nathan Narevsky1, Christopher D. Hull2, Elad Alon1
University of California, Berkeley, CA, 2Intel, Hillsboro, OR