Results 261 to 270 of about 149,949 (289)

Performance Analysis and Optimization of Secure Generalized Spatial Modulation

IEEE Transactions on Communications, 2020
Artificial noise (AN) is considered as a new physical layer technology to improve the security of wireless systems. In this paper, we investigate secure transmission of AN-aided generalized spatial modulation (GSM), which maintains the same hardware requirements at the transmitter as the conventional GSM.
Hong Niu 0001, Xia Lei 0001, Yue Xiao 0001, You Li 0003, Wei Xiang 0001   +4 more
openaire   +2 more sources

Efficient Dual-Mode Generalized Spatial Modulation Detection with Enhanced DNN Architecture

International Conference on Electronics, Information and Communications
Dual-mode generalized spatial modulation (DM-GSM) enhances spectral efficiency in GSM systems using two modes across transmit antennas. However, interference between antennas poses a challenge for signal detection. For this, a deep learning detector, the
Zihui Wang, Xueqin Jiang, Jinming Yu, Miaowen Wen, Jun Li, Han Hai   +5 more
semanticscholar   +1 more source

Holographic contour generation by spatial frequency modulation

Applied Optics, 1982
A contouring method by spatial frequency modulation using hologram interferometry is presented. The principle is that Young's fringes produced by tilting the illumination ray are modulated by the object shape and demodulated by tilting the observation ray to generate depth contours. The problems of fringe localization and visibility in the arrangements
openaire   +2 more sources

Enhancing Security in Generalized Spatial Modulation via Multi-WFRFT

IEEE Wireless Communications Letters
A multi-weighted fractional Fourier transform (MWFRFT)-aided generalized spatial modulation (GSM) scheme is proposed for enhancing physical-layer security (PLS).
Xueqi Yin, Xiaojie Fang, Xuejun Sha, Heng Dong   +3 more
semanticscholar   +1 more source

Intelligent Adaptive Deep Neural Network-Based Signal Detection for Generalized Spatial Modulation Visible Light Communication Systems

IEEE Transactions on Cognitive Communications and Networking
Visible light communication (VLC) is a promising solution for indoor wireless access owing to its unlicensed optical spectrum and compatibility with existing light-emitting diode (LED) infrastructure.
Han Zhu, C. Lam, Liyazhou Hu, Bidong Chen, B. Ng, Edmundo Monteiro   +5 more
semanticscholar   +1 more source

RIS-Aided LEO Satellite Communications With Two Generalized Spatial Modulation Designs

IEEE Transactions on Vehicular Technology
This paper presents innovative approaches to enhance LEO satellite communications by integrating reconfigurable intelligent surfaces (RIS) with generalized spatial modulation (GSM).
Chaorong Zhang, B. Ng, C. Lam
semanticscholar   +1 more source

Diffraction-based determination of the phase modulation for general spatial light modulators

Applied Optics, 2006
We describe a characterization method based on diffraction for obtaining the phase response of spatial light modulators (SLMs), which in general exhibit both amplitude and phase modulation. Compared with the conventional interferometer-based approach, the method is characterized by a simple setup that enables in situ measurements, allows for ...
David, Engström, Gabriel, Milewski, Jörgen, Bengtsson, Sheila, Galt   +3 more
openaire   +2 more sources

Antenna Grouping in Dual-Polarized Generalized Spatial Modulation

2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017
While multiple-input multiple-output (MIMO) is considered as the key enabling technology for high data rate wireless communications, it faces several major challenges in the 5th generation MIMO systems due to limited number of radio frequency (RF) chains and space restrictions. In light of this, generalized-spatial modulation (GSM) and dual- polarized (
Golara Zafari, Mutlu Koca, Xianbin Wang 0001, M. G. S. Sriyananda   +3 more
openaire   +1 more source

Media‐based single‐symbol generalized spatial modulation

International Journal of Communication Systems, 2019
SummarySingle‐symbol generalized spatial modulation (GSM) improves upon the limitation of spatial modulation (SM) by reducing the number of required transmit antennas to achieve high data rates. In this paper, we investigate the application of media‐based modulation (MBM) based on radio frequency mirrors to single‐symbol GSM, with the aim of improving ...
Segun Oladoyinbo, Narushan Pillay, Hongjun Xu 0001   +2 more
openaire   +1 more source

Spatial Modulation for Improved Performance of Next-Generation WLAN

2017 IEEE Wireless Communications and Networking Conference (WCNC), 2017
Next-generation wireless networks target dense deployment scenarios where many heterogeneous devices, from high-end laptops to low-power Internet of Things (IoT) devices and wearables, must coexist and operate reliably. With increased deployment of IoT devices and wearables, increasing the energy efficiency without increasing complexity#x002F;cost is ...
Ahmed G. Helmy, Shahrnaz Azizi, Thomas J. Kenney, Naofal Al-Dhahir   +3 more
openaire   +1 more source