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In this paper, we investigate a multiple-input multiple-output (MIMO) system with simultaneous information detection (ID) and energy harvesting (EH) receiver. This point-to-point system operates in the vicinity of active interfering nodes.…

Information Theory · Computer Science 2019-03-01 Ali Kariminezhad , Aydin Sezgin

Coordination in distributed systems is often hampered by communication latency, which degrades performance. Quantum entanglement offers fundamentally stronger correlations than classically achievable without communication. Crucially, these…

Quantum Physics · Physics 2026-02-05 Francisco Ferreira da Silva , Stephanie Wehner

In bi-static Ambient Backscatter Communications (AmBC) systems, the direct path from the ambient source to the receiver can be several orders of magnitude stronger than the scattered path modulated by the AmBC device. Because of the large…

Information Theory · Computer Science 2019-01-23 Ruifeng Duan , Estifanos Menta , Hüseyin Yiğitler , Riku Jäntti , Zhu Han

This paper investigates performance of a relay assisted hybrid Free Space Optical / Radio Frequency (FSO/RF) communication system. The proposed structure is particularly recommended anywhere that direct RF communication between mobile users…

Signal Processing · Electrical Eng. & Systems 2019-05-22 Mohammad Ali Amirabadi

Parametric amplification is essential for quantum measurement, enabling the amplification of weak microwave signals with minimal added noise. While Josephson-junction-based amplifiers have become standard in superconducting quantum…

Quantum Physics · Physics 2025-12-04 Danial Davoudi , Abdul Mohamed , Shabir Barzanjeh

We establish the fundamental limit of communication capacity within Gaussian schemes under phase-insensitive Gaussian channels, which employ multimode Gaussian states for encoding and collective Gaussian operations and measurements for…

Quantum Physics · Physics 2016-06-06 Jaehak Lee , Se-Wan Ji , Jiyong Park , Hyunchul Nha

We consider a cooperative Gaussian interference channel in which each receiver must decode its intended message locally, with the help of cooperation either at the receivers side or at the transmitter side. In the case of receiver…

Information Theory · Computer Science 2015-10-07 Vasilis Ntranos , Mohammad Ali Maddah-Ali , Giuseppe Caire

Atmospheric turbulence severely limits the coupling of received optical wavefronts into single-mode fibers in satellite-to-ground free-space optical links. Spatial demultiplexing receivers address this challenge by distributing the incoming…

Optics · Physics 2026-03-20 Nicolas Barré

In this paper, we propose a hybrid precoding/combining framework for communication-centric integrated sensing and full-duplex (FD) communication operating at mmWave bands. The designed precoders and combiners enable multiuser (MU) FD…

Signal Processing · Electrical Eng. & Systems 2024-05-16 Murat Bayraktar , Nuria González-Prelcic , Mikko Valkama , Hao Chen , Charlie Jianzhong Zhang

Beamforming design has been widely investigated for integrated sensing and communication (ISAC) systems with full-duplex (FD) sensing and half-duplex (HD) communication. To achieve higher spectral efficiency, in this paper, we extend…

Information Theory · Computer Science 2023-02-21 Zhenyao He , Wei Xu , Hong Shen , Derrick Wing Kwan Ng , Yonina C. Eldar , Xiaohu You

A free-space optical communication system using non-mode-selective photonic lantern (PL) based coherent receiver is studied. Based on the simulation of photon distribution, the power distribution at the single-mode fiber end of the PL is…

Signal Processing · Electrical Eng. & Systems 2020-11-25 Bo Zhang , Renzhi Yuan , Jianfeng Sun , Julian Cheng , Mohamed-Slim Alouini

We calculate the entanglement assisted capacity of a multimode bosonic channel with loss. As long as the efficiency of the channel is above 50%, the superdense coding effect can be used to transmit more bits than those that can be stored in…

Quantum Physics · Physics 2009-11-10 Vittorio Giovannetti , Seth Lloyd , Lorenzo Maccone , Peter W. Shor

Data transmission rate in molecular communication systems can be improved by using multiple transmitters and receivers. In molecular multiple-input multiple-output (MIMO) systems which use only single type of molecules, the performance at…

Information Theory · Computer Science 2019-04-23 Nithin V. Sabu , Neeraj Varshney , Abhishek K. Gupta

Multiple-input multiple-output (MIMO) systems exploit spatial diversity to facilitate multi-user communications with high spectral efficiency by beamforming. As MIMO systems utilize multiple antennas and radio frequency (RF) chains, they…

Signal Processing · Electrical Eng. & Systems 2022-12-02 Eyyup Tasci , Timur Zirtiloglu , Alperen Yasar , Yonina C. Eldar , Nir Shlezinger , Rabia Tugce Yazicigil

Beamforming techniques are utilized in millimeter wave (mmWave) communication to address the inherent path loss limitation, thereby establishing and maintaining reliable connections. However, adopting standard defined beamforming approach…

Networking and Internet Architecture · Computer Science 2025-09-16 Muhammad Baqer Mollah , Honggang Wang , Hua Fang

Millimeter-wave and Terahertz frequencies, while promising high throughput and abundant spectrum, are highly susceptible to hardware non-idealities like phase-noise, which degrade the system performance and make transceiver implementation…

Information Theory · Computer Science 2020-10-28 Vishnu V. Ratnam

Existing semantic communication schemes primarily focus on single-hop scenarios, overlooking the challenges of multi-hop wireless image transmission. As semantic communication is inherently lossy, distortion accumulates over multiple hops,…

Information Theory · Computer Science 2026-01-29 Bingyan Xie , Jihong Park , Yongpeng Wu , Wenjun Zhang , Tony Quek

In this paper, we consider the physical layer security (PLS) problem for integrated sensing and communication (ISAC) systems in the presence of hybrid-colluding eavesdroppers, where an active eavesdropper (AE) and a passive eavesdropper…

Systems and Control · Electrical Eng. & Systems 2025-02-10 Meiding Liu , Zhengchun Zhou , Qiao Shi , Guyue Li , Zilong Liu , Pingzhi Fan , Inkyu Lee

Phase-sensitive amplification of squeezed states is a technique to mitigate high detection loss, e.g. at 2-micrometre wavelengths. Our analytical model of amplified squeezed states expands on the effect of phase noise and derives two…

The paper proposed a method that organizes a parallel transmission of two signals to be separated from each other at receiver through Hamming- to Euclidean space, where the conventional problem of achievable bit rate (ABR) is converted to…

Information Theory · Computer Science 2019-08-26 Bingli Jiao , Dongsheng Zheng , Mingxi Yin , Yuli Yang