Sparse Antenna Array Based Positional Modulation Design With a Low-Complexity Metasurface

Zhang, Bo; Liu, Wei; Ma, Jingxiao; Qi, Zichen; Zhang, Junwei; Han, Liang; Li, Yang; Zhao, Xiaonan; Zhang, Cuiping; Wang, Cheng

doi:10.1109/access.2020.3027285

Cited by 7 publications

(3 citation statements)

References 30 publications

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“…Other BF Approaches [15,17] This Work purpose of the work security security [14] low-cost modulator [16] security low-cost modulator with security requiring modulated signal no [11,18] yes [12] no [16] yes [14] yes no multi-user support no no no yes amplitudes and phases of transmitted signals in specific directions by the means of beamformer weights. Its roots extend to 1990 [8] where the first directional binary phase-shift-keying (BPSK) was proposed by switching the transmitter antenna.…”

Section: Ris-assisted Workmentioning

confidence: 99%

Multi-User Directional Modulation with Reconfigurable Holographic Surfaces

YAĞAN,

KEŞİR,

HÖKELEK

et al. 2023

Preprint

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Large intelligent surfaces arise as an emerging technology and critical building block for sixth generation (6G) wireless networks. Reconfigurable holographic surfaces (RHSs) have been attracting significant attention recently as active antenna arrays with the capability of forming narrow beams at low cost and complexity. This paper introduces the directional modulation (DM) concept for RHS, where a large number of elements is exploited to control not only the signal's power at the receiver but also its phase. Thus, a novel DM algorithm is proposed for RHS enables modulating a carrier wave to transmit information towards specific directions while broadcasting arbitrary signals towards other directions. Error vector magnitude (EVM) results are reported for multiple users, where the directions of two users with respect to the RHS are varied. Mutual information result is also provided for 6 users to demonstrate the application of RHS for the physical layer security. Results are highly promising for future low-cost and secure spatially multiplexed communications.

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Section: Ris-assisted Workmentioning

confidence: 99%

Multi-User Directional Modulation with Reconfigurable Holographic Surfaces

YAĞAN,

KEŞİR,

HÖKELEK

et al. 2023

Preprint

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show abstract

“…Another approach is to use the sparse array technique. The sparse array uses aperiodically antenna elements and by synthesising the phase distribution, beam-steering with relatively low sidelobes can be obtained [7], [8]. The challenge for this approach is that not all the elements are radiating simultaneously, which leads to low aperture efficiency.…”

Section: Introductionmentioning

confidence: 99%

Proof of Concept of a Low-Cost Beam-Steering Hybrid Reflectarray that Mixes Microstrip and Lens Elements Using Passive Demonstrators

Luo

Gao

et al. 2022

IEEE Commun. Mag.

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“…However, it also has been noted that higher frequency leads to greater energy consumption due to the path loss of radio wave propagation [5]. As a result, the increasing dataflow requiring higher frequency inevitably encounters a power supply problem, which may lead to the unacceptable deployment density requirement of base stations [6,7]. erefore, for the wireless networking of IoTs, the dataflow pressure of central base station is a critical challenge [8,9].…”

Section: Introductionmentioning

confidence: 99%

Energy-Saving D2D Wireless Networking Based on ACO and AIA Fusion Algorithm

et al. 2021

Security and Communication Networks

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Lower energy consumption and higher data rate have been becoming the key factors of modern wireless mobile communication for the improvement of user experiences. At present, the commercialization of 5G communications is gradually promoting the development of Internet of things (IoT) techniques. Due to the limited coverage capability of direct wireless communications, the indirect device-to-device (D2D) communications using information relay, in addition to the single 5G base station deployment, have been introduced. Along with the increase of information nodes, the relay devices have to undertake the nonnegligible extra data traffic. In order to adjust and optimize the information routing in D2D services, we present an algorithmic investigation referring to the ant colony optimization (ACO) algorithm and the artificial immune algorithm (AIA). By analyzing the characteristics of these algorithms, we propose a combined algorithm that enables the improved the iterative convergence speed and the calculation robustness of routing path determination. Meanwhile, the D2D optimization pursuing energy saving is numerically demonstrated to be improved than the original algorithms. Based on the simulation results under a typical architecture of 5G cellular network including various information nodes (devices), we show that the algorithmic optimization of D2D routing is potentially valid for the realization of primitive wireless IoT networks.

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Sparse Antenna Array Based Positional Modulation Design With a Low-Complexity Metasurface

Cited by 7 publications

References 30 publications

Multi-User Directional Modulation with Reconfigurable Holographic Surfaces

Multi-User Directional Modulation with Reconfigurable Holographic Surfaces

Proof of Concept of a Low-Cost Beam-Steering Hybrid Reflectarray that Mixes Microstrip and Lens Elements Using Passive Demonstrators

Energy-Saving D2D Wireless Networking Based on ACO and AIA Fusion Algorithm

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