Future wireless communication system embraces physical-layer signal detection with high sensitivity, especially in the microwave photon level. Currently, receiver primarily adopts based on semi-conductor devices for detection, while this paper introduces high-sensitivity photon-level superconducting structure. We first overview existing works optical spectrum as well sensing structure both theo...

A noncoherent two-way relaying system is developed using physical-layer network coding for improved throughput over conventional relaying in a fading channel. Energyefficient noncoherent operation is achieved using multitone frequency shift keying (FSK). A novel soft-output demodulator is developed for the relay, and corresponding achievable exchange rates are found for Rayleigh fading and AWGN...

We consider the transmission over an unknown frequency-selective channel of two independent sources with different application-layer characteristics: one source (such as voice) has a low information rate with a strict delay constraint; the other (such as data) has a high rate but without any delay constraints. We proposed a system structure that jointly considers the different decoding requirem...

Intelligent reflecting surface (IRS) is envisioned as a promising hardware solution to cost and energy consumption in the fifth-generation (5G) mobile communication network. It exhibits great advantages enhancing data transmission, but may suffer from performance degradation caused by inherent impairment (HWI). For analysing achievable rate (ACR) optimizing phase shifts IRS-aided wireless syste...

Given a graph G = (V, E) and k source-sink pairs of vertices, this papers investigates the maximum rate r at which all pairs can simultaneously communicate. We view this problem from two perspectives and compare their advantages. In the multicommodity flow formulation, a solution provides dedicated bandwidth r between each source-sink pair. In the information flow formulation, a vertex can tran...

We consider the transmission over an unknown frequency-selective channel of two independent sources with different characteristics: one source (such as voice) has a low information rate with a strict delay constraint; the other (such data) has a high rate but without any delay constraints. We assume that, due to the delay requirements, the low-rate source must be decoded first and below a certa...

Reconfigurable intelligent surface (RIS) is an emerging technology to enhance wireless communication in terms of energy cost and system performance by equipping a considerable quantity nearly passive reflecting elements. This study focuses on downlink RIS-assisted multiple-input multiple-output (MIMO) that comprises three links Rician channel, including base station (BS) RIS, RIS user, BS user....

Abstract— We consider a multi-user multiple input multiple output (MIMO) Gaussian broadcast channel (BC), where the transmitter and receivers have multiple antennas. Since the MIMO broadcast channel is in general a non-degraded broadcast channel, its capacity region remains an unsolved problem. In this paper, we establish a duality between what is termed the “dirty paper” achievable region (the...