Characterization, measurement and specification of device imperfections in optical coherent transceivers

Z Tao, Y Fan, X Su, K Zhang, C Yang… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Transceiver imperfections become the primary source of impairment as baud rate and
modulation order grow in advanced optical coherent communications. Thus, transceiver …

A dynamic array-of-subarrays architecture and hybrid precoding algorithms for terahertz wireless communications

L Yan, C Han, J Yuan - IEEE Journal on Selected Areas in …, 2020 - ieeexplore.ieee.org
Terahertz (THz) communications are envisioned as a key technology for 6G wireless
systems, owing to an unprecedented promised multi-GHz bandwidth. While THz band …

A case for digital beamforming at mmWave

S Dutta, CN Barati, D Ramirez… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
Due to the heavy reliance of millimeter-wave (mmWave) wireless systems on directional
links, beamforming (BF) with high-dimensional arrays is essential for cellular systems in …

A cnn-lstm-based fusion separation deep neural network for 6g ultra-massive mimo hybrid beamforming

RU Murshed, ZB Ashraf, AH Hridhon… - IEEE …, 2023 - ieeexplore.ieee.org
In the sixth-generation (6G) cellular networks, hybrid beamforming would be a real-time
optimization problem that is becoming progressively more challenging. Although numerical …

A time-interleaved digital-to-analog converter up to 118 GS/s with integrated analog multiplexer in 28-nm FD-SOI CMOS technology

D Widmann, T Tannert, XQ Du, T Veigel… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
To enhance sampling rates of CMOS digital-to-analog converters (DACs), analog
multiplexing of several DAC output signals in the time domain provides a solution. In this …

Demystifying and mitigating code-dependent switching distortions in current-steering DACs

L Lai, X Li, Y Fu, Y Liu, H Yang - IEEE Transactions on Circuits …, 2018 - ieeexplore.ieee.org
This paper analyzes the intermodulation between the element transition rate and the output-
dependent unit switching distortion, ie, the switching distortion of one switching unit, in …

[图书][B] Interleaving concepts for digital-to-analog converters

C Schmidt - 2020 - Springer
Over the last decades, the annual global internet protocol (IP) traffic has been increasing at
an enormous rate and is going to further increase. Overall IP traffic will grow at a compound …

Dynamic-subarray with fixed phase shifters for energy-efficient terahertz hybrid beamforming under partial CSI

L Yan, C Han, N Yang, J Yuan - IEEE Transactions on Wireless …, 2022 - ieeexplore.ieee.org
Terahertz (THz) communications are regarded as a pillar technology for the 6G systems, by
offering multi-ten-GHz bandwidth. To overcome the huge propagation loss, THz ultra …

A 12-bit 2 GS/s dual-rate hybrid DAC with pulse-error pre-distortion and in-band noise cancellation achieving> 74 dBc SFDR and<− 80 dBc IM3 up to 1 GHz in 65 nm …

S Su, MSW Chen - IEEE Journal of Solid-State Circuits, 2016 - ieeexplore.ieee.org
This paper presents a 12-bit 2 GS/s dual-rate hybrid DAC using bandwidth-and linearity-
enhancement techniques. The proposed pulsed-error pre-distortion scheme enhances DAC …

A 10-bit DC-20-GHz multiple-return-to-zero DAC with> 48-dB SFDR

L Duncan, B Dupaix, JJ McCue… - IEEE Journal of Solid …, 2017 - ieeexplore.ieee.org
A dc-20-GHz multiple-return-to-zero digital-to-analog converter (DAC) is proposed for direct
radio frequency synthesis. To minimize frequency-dependent amplitude and phase errors in …