Results 41 to 50 of about 12,924 (273)

A Survey on Spatial Modulation OFDM: Optimal Detection and Performance Analysis

open access: yesENP Engineering Science Journal, 2023
Spatial modulation is a novel modulation scheme that aims to acquire a trade-off between the two adverse purposes in wireless communications, namely the improvements of data rate and data reliability, by adjusting the operational transmit antenna index ...
Fadila BERRAHMA   +2 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

New Trellis Code Design for Spatial Modulation

open access: yes, 2011
Spatial modulation (SM) in which multiple antennas are used to convey information besides the conventional M-ary signal constellations is a new multiple-input multiple-output (MIMO) transmission technique which has recently been proposed as an ...
Panayırcı, Erdal   +3 more
core   +1 more source

Low-Complexity Transmit Antenna Selection in Large-Scale Spatial Modulation Systems

open access: yesInternational Journal of Antennas and Propagation, 2015
Transmit antenna selection (TAS) is an efficient way for improving the system performance of spatial modulation (SM) systems. However, in the case of large-scale multiple-input multiple-output (MIMO) configuration, the computational complexity of TAS in ...
Peng Wei   +4 more
doaj   +1 more source

Differential spatial modulation for high-rate transmission systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
This paper introduces a new differential spatial modulation (DSM) scheme which subsumes both the previously introduced DSM and high-rate spatial modulation (HR-SM) for wireless multiple input multiple output (MIMO) transmission. By combining the codeword
Thu Phuong Nguyen   +3 more
doaj   +1 more source

Resource allocation for sum-rate maximization in NOMA-based generalized spatial modulation

open access: yesDigital Communications and Networks, 2022
The Multiple-Input Multiple-Output (MIMO) Non-Orthogonal Multiple Access (NOMA) based on Spatial Modulation (SM-MIMO-NOMA) system has been proposed to achieve better spectral efficiency with reduced radio frequency chains comparing to the traditional ...
Guoquan Li   +4 more
doaj   +1 more source

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

open access: yesFEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani   +3 more
wiley   +1 more source

Performance analysis of cooperative wireless sensor network with index-based modulation

open access: yesThe Journal of Engineering, 2019
Spatial modulation (SM) emerges as a potential technique for next generation wireless networks. Enhanced spectral efficiency and equitable system complexity led SM to various innovations.
Subhashini Neelamegam   +1 more
doaj   +1 more source

Performance Analysis of Variant MIMO Systems Over 3-D Vehicular to Vehicular Channel

open access: yesIEEE Access, 2020
This article analyzes the performance of variant multiple-input multiple-output (MIMO) systems over three-dimensional (3D) vehicular to vehicular (V2V) wireless communication channel.
Anas Alashqar, Ashraf Tahat, Raed Mesleh
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

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