Results 31 to 40 of about 220,563 (256)
Joint Transmitter–Receiver Spatial Modulation
IEEE Access, 2018 We propose and investigate a joint transmitter-receiver spatial modulation (JSM) scheme, which transmits information by jointly exploiting the indices of transmit antenna patterns, the indices of receiver antennas, and amplitude-phase modulation.
Chaowen Liu +3 more
doaj +1 more source
IEEE Access, 2018 In this treatise, we present the concept of compressed-sensing (CS)-aided space-time shift keying index modulation (STSK-IM), where a virtual domain orthogonal frequency division multiplexing (OFDM) symbol is divided into Na-sized blocks, which carry K ...
Ibrahim A. Hemadeh +3 more
doaj +1 more source
IEEE Access, 2020 The work in this paper is an extension of the recently proposed stacked Alamouti based spatial modulation (SA-SM) scheme. The motivation is that by taking advantage of the existing full-diversity full-rate (FDFR) space-time code, to construct SM ...
Lei Wang
doaj +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
Optical Wireless Communications Using Signal Space Diversity with Spatial Modulation
Photonics, 2021 A signal space diversity (SSD) scheme was proposed to be incorporated with spatial modulation (SM) in an intensity-modulation/direct-detection-based multiple-input-single-output (MISO) indoor optical wireless communication (OWC) system to improve bit ...
Tingting Song +3 more
doaj +1 more source
Signal Shaping for Generalized Spatial Modulation and Generalized Quadrature Spatial Modulation [PDF]
IEEE Transactions on Wireless Communications, 2019 Summited to IEEE ...
Shuaishuai Guo +5 more
openaire +3 more sources
A Survey on Physical Layer Techniques and Challenges in Underwater Communication Systems
Journal of Marine Science and Engineering, 2023 In the past decades, researchers/scientists have paid attention to the physical layer of underwater communications (UWCs) due to a variety of scientific, military, and civil tasks completed beneath water.
Naveed Ur Rehman Junejo +6 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 +5 more
wiley +1 more source
IEEE Access, 2017 Spatial modulation utilizes the diversity of multiple-input multiple-output channel to improve the spectral efficiency. In time-variant wireless channels, its performance degrades due to the inaccuracy of channel estimation (CE).
Ziyuan Sha +3 more
doaj +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source