no code implementations • 5 Jan 2023 • Xiongfei Zhai, Guojun Han, Yunlong Cai, Yuanwei Liu, Lajos Hanzo
The performance of over-the-air computation (AirComp) systems degrades due to the hostile channel conditions of wireless devices (WDs), which can be significantly improved by the employment of reconfigurable intelligent surfaces (RISs).
no code implementations • 3 Sep 2022 • Runbin Cai, Yi Fang, Zhifang Shi, Lin Dai, Guojun Han
To mitigate the impact of noise and interference on multi-level-cell (MLC) flash memory with the use of low-density parity-check (LDPC) codes, we propose a dynamic write-voltage design scheme considering the asymmetric property of raw bit error rate (RBER), which can obtain the optimal write voltage by minimizing a cost function.
no code implementations • 29 Mar 2021 • Huan Ma, Yi Fang, Guofa Cai, Guojun Han, Yonghui Li
To further improve the system flexibility, we formulate a generalized modulation scheme and propose scheme II by treating the SFB groups as an additional type of transmission entity.
no code implementations • 28 Jun 2020 • Huan Ma, Guofa Cai, Yi Fang, Pingping Chen, Guojun Han
The result demonstrates that the diversity order of the system in the imperfect CSI scenario with fixed channel estimate error variance is zero.
no code implementations • 9 Aug 2019 • Yang Liu, Guojun Han, Yonghua Wang, Zheng Xue, Jing Chen
Received signal strength (RSS)-based wireless localization is easy to implement at low cost.