Showing papers on "Communication channel published in 2022"
TL;DR: Wang et al. as mentioned in this paper investigated the impacts of the manufacturer's channel encroachment and the e-commerce platform's logistics integration on a PSSC and found that the platform's complete (or partial) logistics integration strategy can effectively deter the manufacturers' channel encroaching under certain conditions.
35 citations
30 citations
TL;DR: In this article, the antecedents of two-way symmetrical communication in an organization were examined using channels used by members of the organization in different positions, focusing on channels that were used by different positions in the organization.
Abstract: Focusing on channels used by members of the organization in different positions, this study aims to examine the antecedents of two-way symmetrical communication in an organization. Using two-way sy...
30 citations
TL;DR: In this article, a total of 254 results comprising 30 shear tests and 224 finite element analysis results are reported for cold-formed steel (CFS) channel channel, and the results of these tests are compared with the results reported in this paper.
Abstract: In this paper, a total of 254 results comprising 30 shear tests and 224 finite element (FE) analysis results are reported. Simply supported test specimens of cold-formed steel (CFS) channel...
30 citations
TL;DR: In this article, a universal spectral super-resolution network based on physical optimization unfolding for arbitrary multispectral images, including single-resolution and cross-scale multi-spectral images was proposed.
22 citations
TL;DR: An improvement of SNR for SWPDT system with full-duplex communication mode with double-sided LCCL compensation topology and a novel data transmission based on the dual-resonant structure is proposed to suppress the ipsilateral interference.
Abstract: The power interference is always inevitable in the simultaneous wireless power and data transfer (SWPDT) system resulting in the lower signal to noise rate (SNR) and may cause the failure of communication. Besides, the interference between bidirectional data source is also the problem during the full-duplex communication. To solve these problems, in this article, an improvement of SNR for SWPDT system with full-duplex communication mode is proposed. In the power transfer channel, the double-sided LCCL compensation topology is selected due to its good performance of blocking the power interference on data transmission. Besides, the constant current characteristic of primary coil could guarantee the stability of power transmission. In the data transfer channel, a novel data transmission based on the dual-resonant structure is proposed to suppress the ipsilateral interference, and the full-duplex communication is achieved by two different frequencies. An optimization method of power and data transfer channel to improve SNR further is proposed after the analysis on interferences of power transmission and ipsilateral data source. Finally, the feasibility of proposed topology and the correctness of the parameter design method are verified by the simulation and experimental results.
19 citations
TL;DR: In this paper, the authors proposed a two-hop integrated radio frequency-visible light communication (RF-VLC) system which may provide a better option to transceive between the hospitals and some laboratory to transfer patient's information.
16 citations
14 citations
TL;DR: In this paper, the authors develop and test the theoretical notion that in addition to transaction costs, differences in entrepreneurial orientation (EO) influence export channel choice and as a consequence export performance, and find that firms selecting export channels that align not only with transaction cost factors but also firm level EO, moderated by institutional distance have higher export market performance.
13 citations
TL;DR: In this paper, the influence of Chinese government subsidy on e-waste treatment formal and informal reverse supply chains (RSC) and explore the optimal formal channel structure was analyzed.
13 citations
01 Jan 2022
TL;DR: This work presents an improved channel access granting mechanism for data routing and scheduling via software defined vehicular networks (SDVN) and presents two computational improvement strategies based on incremental optimization and maximum independent sets (MIS) for the two application scenarios to shift the computational complexity to a realizable level for real-time communication.
TL;DR: The proposed DSP-enabled 50G-PON shows great application potentials for the next-generation PON by using the proposed digital signal processing, power budget beyond 29 dB is achieved at BER of 2 × 1 0 − 2 after 20 km standard single-mode fiber transmission.
TL;DR: In this article, the authors proposed a novel detector, dubbed as PU-Net, that dynamically learns the PU activity patterns in a cognitive 5G smart city, where a network of unmanned aerial vehicles (UAVs) is deployed as flying base stations to serve the Internet-of-Things (IoT) users.
TL;DR: In this article, a 7T 31-channel (31-ch) brain array was constructed and tested using combined Rx and ΔB0 shim channels driven by a set of rapidly switchable current amplifiers.
Abstract: Purpose To test an integrated "AC/DC" array approach at 7T, where B0 inhomogeneity poses an obstacle for functional imaging, diffusion-weighted MRI, MR spectroscopy, and other applications. Methods A close-fitting 7T 31-channel (31-ch) brain array was constructed and tested using combined Rx and ΔB0 shim channels driven by a set of rapidly switchable current amplifiers. The coil was compared to a shape-matched 31-ch reference receive-only array for RF safety, signal-to-noise ratio (SNR), and inter-element noise correlation. We characterize the coil array's ability to provide global and dynamic (slice-optimized) shimming using ΔB0 field maps and echo planar imaging (EPI) acquisitions. Results The SNR and average noise correlation were similar to the 31-ch reference array. Global and slice-optimized shimming provide 11% and 40% improvements respectively compared to baseline second-order spherical harmonic shimming. Birdcage transmit coil efficiency was similar for the reference and AC/DC array setups. Conclusion Adding ΔB0 shim capability to a 31-ch 7T receive array can significantly boost 7T brain B0 homogeneity without sacrificing the array's rdiofrequency performance, potentially improving ultra-high field neuroimaging applications that are vulnerable to off-resonance effects.
TL;DR: In this article, a combination of the design of experiments (DOE) and computational fluid dynamics (CFD) was developed to evaluate the interaction between variables of module geometry and how they affect the performance of a direct contact membrane distillation (DCMD) process.
TL;DR: In this article, a progressive kernel pruning with salient mapping of input-output channels is proposed to improve the performance of the pruning model, where the input and output channels are simultaneously considered in pruning process.
01 Jan 2022
TL;DR: In this paper, the effects of traffic-induced delay and dropout on the finite-horizon quality of control of an individual stochastic linear time-invariant system, where quality-of-control is measured by an expected quadratic cost function, are analyzed.
Abstract: Transmission delay and packet dropout are inevitable network-induced phenomena that severely compromise the control performance of network control systems. The real-time network traffic is a major dynamic parameter that directly influences delay and reliability of transmission channels, and thus, acts as an unavoidable source of induced coupling among all network sharing systems. In this letter, we analyze the effects of traffic-induced delay and dropout on the finite-horizon quality-of-control of an individual stochastic linear time-invariant system, where quality-of-control is measured by an expected quadratic cost function. We model delay and dropout of the channel as generic stochastic processes that are correlated with the real-time network traffic induced by the rest of network users. This approach provides a pathway to determine the required networking capabilities to achieve a guaranteed quality-of-control for systems operating over a shared-traffic network. Numerical evaluations are performed using realistic stochastic models for delay and dropout. As a special case, we consider exponential distribution for delay with its rate parameter being traffic-correlated, and traffic-correlated Markov-based packet drop model.
TL;DR: In this paper, the optimal filtering problem for discrete-time networked control systems affected by fading channels is investigated where both the fading channel and channel noise are time-correlated.
TL;DR: In this article, a non-contact digital imaging method with a laser generator and bandwidth filter is proposed to measure the continuous channel sagging in a uniquely designed test rig, which is used during the implementation of the present approach for sagging analysis at elevated temperatures.
Abstract:
Whenever any engineering system comprising of an internally heated channel/tube is exposed to a severe thermal load, the sagging or deflection measurement becomes an inevitable task from its safety/design analysis perspective. As an example, in a horizontal-type nuclear reactor safety study, it is required to measure the sagging of the channels during a postulated accidental scenario analysis. Unfortunately, measurement of the transient deflection/sagging of the channel under a harsh environment at extreme temperatures is a challenging task, and cannot be performed by the means of conventional intrusive approaches. This study proposes a non-contact digital imaging method with a laser generator and bandwidth filter, which is tested to measure the continuous channel sagging in a uniquely designed test rig. A scaled-down channel setup simulating the horizontal type nuclear reactor is used during the implementation of the present approach for sagging analysis at elevated temperatures. A digital edge detection tool with the Canny method is used to extract digital edges from recorded grayscale images, wherein successive images are used to measure transient sagging. The results are compared with post-test channel deflection measurements, and the difference in measurement is found to be within ±10 percent of post-test deflection.
TL;DR: Wang et al. as discussed by the authors proposed a non-local channel aggregation network (NCANet) to address the SIRR problem. But, their model cannot capture long-range location dependencies or aggregate convolutional channel information simultaneously.
TL;DR: In this paper, the authors study the modeling and control for discrete-time networked control systems (NCSs) over the random delay and packet drop channel, where the channel states are characterized by the finite Markov states, enabling the computation of the corresponding transition probability matrix.
TL;DR: ALOHA-dQT is the first RL-based approach for channel access that is suitable for wireless networks that do not rely on centralized repeaters or base stations and achieves high utilization by having nodes broadcast short summaries of the channel history as known to them along with their packets.
TL;DR: In this paper, the authors presented a neural network architecture that provides an explicit stochastic model for both SISO and MIMO channels, by learning the parameters of a Gaussian mixture distribution from real channel samples.