Results 41 to 50 of about 28,039 (290)

Broadcasting Scalable Video With Generalized Spatial Modulation in Cellular Networks

IEEE Access, 2020
This paper considers the transmission of scalable video via broadcast and multicast to increase spectral and energy efficiency in cellular networks.
Americo M. C. Correia, Nuno M. B. Souto, Pedro Sebastiao, David Gomez-Barquero, Manuel Fuentes   +4 more
doaj   +1 more source

On the Design of Near-Optimal Generalized Block-Based Spatial Modulation With Low Detection Complexity

IEEE Open Journal of Signal Processing
Spatial Modulation (SM) and Generalized Spatial Modulation (GSM) have attracted significant attention in the development of spectrally and energy-efficient transmission schemes for multiple-input multiple-output (MIMO) systems.
Yen-Ming Chen, Wei-Lun Lin, Heng Lee, Tsung-Lin Chen   +3 more
doaj   +1 more source

A DNN Architecture for the Detection of Generalized Spatial Modulation Signals [PDF]

IEEE Communications Letters, 2020
In this letter, we consider the problem of signal detection in generalized spatial modulation (GSM) using deep neural networks (DNN). We propose a novel modularized DNN architecture that uses small sub-DNNs to detect the active antennas and complex modulation symbols, instead of using a single large DNN to jointly detect the active antennas and ...
Bharath Shamasundar, Ananthanarayanan Chockalingam   +1 more
openaire   +2 more sources

Low-complexity signal detection for generalized spatial modulation

, 2014
Generalized spatial modulation (GSM), in which only part of the transmit antennas are activated in each time slot, was recently proposed as a trade-off between spatial modulation (SM) and vertical Bell laboratories space-time (V-BLAST).
Yang, Ping, Xiang, Wei, Dan, Lilin, Yin, Lu, Yang, Z., Xiao, Y., Xiao, Yue, Yang, Zongfei, Dan, L., Xiang, W., Yang, P., Yin, L.   +11 more
core   +1 more source

Transmit Antenna Combination Optimization for Generalized Spatial Modulation Systems

IEEE Access, 2018
Generalized spatial modulation (GSM), where both the transmit antenna combination (TAC) index and the amplitude phase modulation (APM) symbols convey information, is a novel low-complexity and high efficiency multiple-input multiple-output (MIMO ...
Lixia Xiao, Pei Xiao, Yue Xiao, Chaowu Wu, Hung Viet Nguyen, Ibrahim A. Hemadeh, Lajos Hanzo   +6 more
doaj   +1 more source

Error performance analysis of generalized quadrature spatial modulation using H-8QAM

Scientific Reports, 2022
Motivated to enhance the error performance (EP) of generalised complex quadrature spatial modulation (GCQSM) systems, this study proposes a scheme that builds on GCQSM and uses hexagonal quadrature amplitude modulation (H-QAM) constellations which have ...
Nathael Sibanda, Hongjun Xu, Narushan Pillay   +2 more
doaj   +1 more source

Spatial Modulation and Generalized Spatial Modulation for Dynamic Metasurface Antennas

IEEE Transactions on Wireless Communications
To address the significant capital expenditures (CAPEX) and operating expenses (OPEX) associated with each antenna having its dedicated radio frequency (RF) chain in multiple-input multiple-output configuration, various techniques have been introduced, such as analog architectures, hybrid architectures, and index modulation (IM).
Arnold E. Matemu, Kyungchun Lee
openaire   +1 more source

A low-complexity detection algorithm for quadrature spatial modulation systems

Dianxin kexue, 2017
To tackle the issues of the uncertainty number of the activated antennas and high computational complexity of maximum likelihood (ML) detection algorithm in quadrature spatial modulation (QSM),a low-complexity detec-tion algorithm was proposed.Firstly ...
Kai LUO, Junwei HUANG, Pengguang ZHOU, Hao XU, Can WU   +4 more
doaj   +2 more sources

Mutual Information Analysis for Generalized Spatial Modulation Systems With Multilevel Coding

IEEE Open Journal of the Communications Society, 2022
Generalized Spatial Modulation (GSM) enables a trade-off between very high spectral efficiencies and low hardware costs for massive MIMO systems. This is achieved by transmitting information via the selection of active antennas from a set of available ...
Volker Kuhn, Daniel Nicolas Bailon, Jurgen Freudenberger   +2 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source