6 papers
Quantum-Limited Symbol-Blind Channel Estimation for Coherent State Discrimination
Hongxu Chen, Renzhi Yuan, Haifeng Yao +1
Residual dispersion breaks temporal-mode matching in photon-starved coherent links. For equiprobable -ary PSK coherent states in a known spectral mode, with unknown symbols and…
Finite-Support Structure in i.i.d.-Constrained Capacity of Finite-Memory Poisson Channels
Renzhi Yuan, Mugen Peng
Discrete-time Poisson channels with finite intersymbol interference provide a natural model for direct-detection optical links in which multipath memory and signal-dependent shot n…
Channel Modeling of Satellite-to-Underwater Laser Communication Links: An Analytical-Monte Carlo Hybrid Approach
Zhixing Wang, Renzhi Yuan, Haifeng Yao +2
Channel modeling for satellite-to-underwater laser communication (StULC) links remains challenging due to long distances and the diversity of the channel constituents. The StULC ch…
Multi-Stage CD-Kennedy Receiver for QPSK Modulated CV-QKD in Turbulent Channels
Renzhi Yuan, Zhixing Wang, Shouye Miao +4
Continuous variable-quantum key distribution (CV-QKD) protocols attract increasing attentions in recent years because they enjoy high secret key rate (SKR) and good compatibility w…
Joint Communication and Radar Sensing for Terahertz Space-Air-Ground Integrated Networks (SAGIN)
Chong Han, Weijun Gao, Zhepu Yin +3
The transition from isolated systems to integrated solutions has driven the development of space-air-ground integrated networks (SAGIN) as well as the integration of communication…
Sensing-Assisted Beam Tracking with Real-Time Beamwidth Adaptation for THz Communications
Wuhan Chen, Yuheng Fan, Chuang Yang +1
Terahertz (THz) communications, with their substantial bandwidth, are essential for meeting the ultra-high data rate demands of emerging high-mobility scenarios such as vehicular-t…