Results 41 to 50 of about 601,910 (308)
Energy Efficient Transmission over Space Shift Keying Modulated MIMO Channels [PDF]
, 2012 Energy-efficient communication using a class of spatial modulation (SM) that encodes the source information entirely in the antenna indices is considered in this paper. The energy-efficient modulation design is formulated as a convex optimization problem,
Chang, Ronald Y. +2 more
core +1 more source
Analogue Radio Over Fiber Aided MIMO Design for the Learning Assisted Adaptive C-RAN Downlink
IEEE Access, 2019 The cloud/centralized radio access network (C-RAN) architecture is recognized as a strong candidate for the next generation wireless standards, potentially reducing the total cost of ownership.
Yichuan Li +3 more
doaj +1 more source
An Intelligent Target Feature Recognition Method Based on Multi-mode OAM Beams
Leida xuebao, 2021 Target detection based on space modulation requires a large number of test modes with space-time independence. The Orbital Angular Momentum (OAM) beams are orthogonal to each other and have infinite modes.
Ningning ZHOU +4 more
doaj +1 more source
On the Capacity and Performance of Generalized Spatial Modulation
, 2015 Generalized spatial modulation (GSM) uses $N$ antenna elements but fewer radio frequency (RF) chains ($R$) at the transmitter. Spatial modulation and spatial multiplexing are special cases of GSM with $R=1$ and $R=N$, respectively.
Chockalingam, A., Narasimhan, T. Lakshmi
core +1 more source
Modulation Diversity for Spatial Modulation Using Complex Interleaved Orthogonal Design [PDF]
, 2012 In this paper, we propose modulation diversity techniques for Spatial Modulation (SM) system using Complex Interleaved Orthogonal Design (CIOD) meant for two transmit antennas. Specifically, we show that by using the CIOD for two transmit antenna system,
Hari, K. V. S., Rajashekar, Rakshith
core +1 more source
Spatial Modulation Microscopy for Real-Time Imaging of Plasmonic Nanoparticles and Cells
, 2012 Spatial modulation microscopy is a technique originally developed for quantitative spectroscopy of individual nano-objects. Here, a parallel implementation of the spatial modulation microscopy technique is demonstrated based on a line detector capable of
A. G. Kanaras +18 more
core +1 more source
Spatial light modulators [PDF]
Photoniques, 2020 Spatial Light Modulators (SLMs) are quasiplanar devices, allowing for the modulation of the amplitude, phase and polarization, or a combination of these parameters of an incident light beam according to the two spatial dimensions of the modulator. SLMs are employed in many different fields and are the subject of continuous technological development.
openaire +1 more source
Spatial modulation of fast antenna switch
Dianzi Jishu Yingyong, 2018 A fast switching spatial modulation scheme is proposed to improve the secrecy performance of the spatial modulation signal. The signal is a space-spread-spectrum signal associated with the channel information because of fast antenna switch.
Geng Fei, Hong Tao
doaj +1 more source
IEEE Access, 2022 Although the channel state information (CSI) is never perfect and varies in time, most studies on spatial modulation (SM) systems assume perfectly known CSI and time-invariant channel.
Hsuan-Cheng Chang +2 more
doaj +1 more source
, 2012 We report observation of a strong wakefield induced energy modulation in an energy-chirped electron bunch passing through a dielectric-lined waveguide.
A. Kanareykin +15 more
core +1 more source