846 research outputs found
Supply Chain Agility and Internal and External Process Connectivity: The Impact of Supply and Product Complexity
The study attempts to analyze the impact of internal and external process connectivity on supply chain agility of manufacturing firms in Thailand. It also examines whether supply and product complexity moderates the impact of internal and external process connectivity on supply chain agility. The study relies on the questionnaire survey to collect the data. Using electronic survey, the respondents working in manager’ positions in Thailand’s manufacturing companies are targeted. Out of 250 survey questionnaires, only 173 responses were found usable with a rate of response of 57.2%. The study focuses on Thai firms because Thai manufacturing sector is one of the strongest players in the globe. The reason to select manufacturing firms is that the manufacturing firms are considered to be very crucial in global supply chains in terms of providing agility and responsiveness while delivering final products to the consumers. Supply chain agility (SCAG) is used as dependent while internal process connectivity (INPC) and external process connectivity (EXPC) are used as independent variables. Moreover, product complexity (PRCX) and supply complexity (SPCX) are used as moderating variables. Findings show that SPCX has negatively significant influence on SCAG while PRCX has insignificant effect on SCAG. INPC and EXPC have positive and significant impact on SCAG. The results state that both INPC and EXPC play vital role in attaining SCAG. The interaction effect of product term (INPC × EXPC) on SCAG is also found to be positively significant. These outcomes are in line with the process theory which states that both INPC and EXPC are significant factor that play important role in attaining SCAG. Both these processes permit companies to better respond to continuous variations
Impact of Corporate Entrepreneurship and Organizational Culture on Business Performance: The Role of Supply Chain Management
With the expanding multifaceted nature and vulnerability of worldwide inventory chains, interruption occasions are as often as possible happening in production network. Commercial condition is separated into two sorts including inner and outer business conditions. In the examination, our inward business condition is organization culture and inside business condition is supply chain performance (SCP). Therefore, the purpose of this study is to quantify the impact of organizational culture (OC), corporate entrepreneurship (CE) and its components on business performance (BP) through SCP in the non-financial sector of Thailand. Research sample comprises of 120 non-financial firms operating in Thailand. The study finds that SCP fully mediates the relationship between work reinforcement BP and time availability and BP. Whereas, SCP is found to have partial mediation in the relationship between CE BP, OC BP, management support BP, organization boundaries BP and reward reinforcement and BP. Findings of study are important for mangers in understanding and implementation of better OC which leads to CE and will ultimately enhance BP
Securing MIMO Wiretap Channel with Learning-Based Friendly Jamming under Imperfect CSI
Wireless communications are particularly vulnerable to eavesdropping attacks
due to their broadcast nature. To effectively deal with eavesdroppers, existing
security techniques usually require accurate channel state information (CSI),
e.g., for friendly jamming (FJ), and/or additional computing resources at
transceivers, e.g., cryptography-based solutions, which unfortunately may not
be feasible in practice. This challenge is even more acute in low-end IoT
devices. We thus introduce a novel deep learning-based FJ framework that can
effectively defeat eavesdropping attacks with imperfect CSI and even without
CSI of legitimate channels. In particular, we first develop an
autoencoder-based communication architecture with FJ, namely AEFJ, to jointly
maximize the secrecy rate and minimize the block error rate at the receiver
without requiring perfect CSI of the legitimate channels. In addition, to deal
with the case without CSI, we leverage the mutual information neural estimation
(MINE) concept and design a MINE-based FJ scheme that can achieve comparable
security performance to the conventional FJ methods that require perfect CSI.
Extensive simulations in a multiple-input multiple-output (MIMO) system
demonstrate that our proposed solution can effectively deal with eavesdropping
attacks in various settings. Moreover, the proposed framework can seamlessly
integrate MIMO security and detection tasks into a unified end-to-end learning
process. This integrated approach can significantly maximize the throughput and
minimize the block error rate, offering a good solution for enhancing
communication security in wireless communication systems.Comment: 12 pages, 15 figure
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