Secure Backscatter Communications Enabled by Reconfigurable Intelligent Surfaces: Analytical Modeling and Performance Evaluation
Reconfigurable intelligent surfaces can significantly enhance the physical layer security performance of backscatter communication systems by improving the signal-to-noise ratio at the legitimate receiver and degrading it at the eavesdropper.
Optimal One- and Two-Sided Multi-level Amplitude Shift Keying Modulation for RIS-Assisted Noncoherent Communication Systems
The paper proposes optimal one- and two-sided multi-level amplitude shift keying (ASK) modulation schemes for reconfigurable intelligent surface (RIS)-assisted noncoherent wireless communication systems, considering both blocked and unblocked direct channel scenarios. The optimal modulation schemes are designed to minimize the symbol error probability under average transmit power constraints.
Maximizing Sum Secrecy Rate in Wireless Vehicular Networks with Joint Bandwidth and Power Management
The core message of this article is to maximize the sum secrecy rate of all vehicle-to-vehicle (VUE) pairs in a wireless vehicular network by jointly optimizing the bandwidth reuse coefficients and transmit power, while considering the presence of an eavesdropper.
Semantic Adaptive Feature Extraction with Rate Control for Flexible Wireless Image Transmission in 6G Networks
The SAFE framework enables flexible and efficient wireless image transmission by adaptively extracting and transmitting multiple sub-semantic features based on channel conditions, significantly improving bandwidth utilization.
Outage Probability Analysis for Orthogonal Time Frequency Space (OTFS) Modulation in Lossy Communication Scenarios
This paper analyzes the outage probability of orthogonal time frequency space (OTFS) modulation under lossy communication scenarios, deriving an exact expression and a lower bound for the outage probability.
Maximizing User Fairness in Wireless Powered Communication Networks with Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surfaces
The core message of this paper is to enhance user fairness in wireless powered communication networks (WPCNs) by deploying a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS). Two STAR-RIS operating protocol-driven transmission strategies, namely energy splitting non-orthogonal multiple access (ES-NOMA) and time switching time division multiple access (TS-TDMA), are proposed to effectively eliminate the doubly-near-far effect in WPCNs.
Enhancing Spectral and Energy Efficiency of Affine Frequency Division Multiplexing for 6G Wireless Networks through Pre-Chirp-Domain Index Modulation
The proposed AFDM-PIM scheme can implicitly convey extra information bits through dynamic pre-chirp parameter assignment, thus enhancing both spectral and energy efficiency for 6G wireless networks.
Maximizing System Sum Throughput in Wireless-Powered NOMA Networks with Movable Antennas
The core message of this article is to maximize the system sum throughput in a wireless-powered NOMA network by jointly optimizing the positions of movable antennas at the hybrid access point and the wireless devices, the time allocation, and the uplink power allocation.
Comprehensive Propagation Measurements and Channel Models for 5G and 6G in the Indoor Hotspot (InH) Environment at Mid-Band Frequencies
This work presents a standardized approach for reporting propagation measurement data in point form, enabling transparency and utilization by standards bodies and third parties to create statistical channel impulse response models for the newly-released mid-band spectrum (7.25 GHz – 24.25 GHz).
Enhancing Spectral Efficiency and Reliability in Near-Field MIMO Systems through Beamspace Modulation
Beamspace modulation (BM) is an effective technique for harnessing the significantly increased and dynamically evolving spatial degrees of freedom (DoFs) in near-field MIMO systems, leading to substantial improvements in spectral efficiency and system reliability.
© 2024 by Linnk AI