首页期刊导航|International journal of communication networks and distributed systems: IJCNDS
期刊信息/Journal information
International journal of communication networks and distributed systems: IJCNDS
Inderscience Enterprises Ltd
Inderscience Enterprises Ltd
1754-3916
International journal of communication networks and distributed systems: IJCNDS/Journal International journal of communication networks and distributed systems: IJCNDSEIESCI
Leila BouchritSajeh ZairiIkbal C. MsadaaAmine Dhraief...
373-404页
查看更多>>摘要：Vehicular ad hoc networks (VANETs) safety applications aim to mitigate the growing frequency of daily road accidents. These applications require the prompt dissemination of warning messages among vehicles, regardless of traffic conditions or environment. The limited terrestrial coverage in sparsely populated rural regions challenges the timely receipt of warnings during accidents. To address these issues, integrating unmanned aerial vehicles (UAVs) into VANETs offers a promising solution. UAVs can function as flying relays, meeting necessary delay limitations and overcoming communication problems. In prior work, we introduced a unified UAVs-VANET architecture, using UAVs to relay safety messages among vehicles in rural settings. This paper extends that work by integrating UAVs in rural and urban environments. Our approach includes determining the minimal residual UAV energy needed to connect to a charging station, ensuring continuous UAV operation. This extended framework ensures all vehicles on a 25 km urban highway receive alerts within 1.95 seconds.
查看更多>>摘要：The coded caching technique and data distribution on multiple servers, known as a distributed storage system (DSS), are two separate concepts that bring various improvements to the communication environment. Combining the two techniques enhances the user network performance by decreasing the peak rate, optimising the user memory and decreasing the latency. This paper investigates the benefits of merging coded caching and distributed storage in various multiserver systems. Hence, we propose a new construction called the non-systematic. This approach considers using a multi-server system consisting of only parity servers and encoded linear combinations of popular file segments based on a predefine non-systematic code in the placement and delivery phases making this concept attractive in terms of security. The proposed concept achieves optimised results regarding the peak rate and the user cache memory and tremendously improves the data security compared to other multi-server systems.
查看更多>>摘要：This study develops and validates an eight-driver framework by integrating technology-organisation-environment (TOE) theory with institutional theory to enhance understanding of Internet of Things (IoT) adoption intentions. Small and medium enterprises (SMEs) in developing nations face challenges such as inadequate technological infrastructure, limited organisational resources, and external support. Focusing on Pakistani manufacturing SMEs, this research investigates the influence of the TOE framework and institutional theory on IoT adoption intentions, using data from 207 firms analysed through partial least squares structural equation modelling (PLS-SEM). The analysis supported seven of the proposed hypotheses, demonstrating positive impacts of TOE drivers on IoT adoption intentions, except for cost. Limitations include the restricted scope of data collection and the omission of pre-adoption phases. This research provides valuable insights into how IoT can strategically benefit manufacturing SMEs in Pakistan, offering guidance for policymakers, researchers, and practitioners. Recommendations include the need for SMEDA and the Pakistani government to improve technology adoption processes and implementation at the global level.
查看更多>>摘要：This paper explores parallel iterative methods for solving Markovian systems, aiming to tackle computational challenges in scientific and industrial contexts. Two strategies for parallelising the Gauss-Seidel iterative scheme in the circuit-switching networks model are deployed and evaluated on both shared memory multiprocessor systems and networks of shared memory multiprocessor machines. The first strategy involves modifying the Gauss-Seidel iterative scheme, while the second employs a colouring technique for components in red and black. An activation message-based termination method is introduced for asynchronous iterations on networks of shared memory multiprocessor machines. Additionally, a novel parallel iterative method for general Markovian systems is proposed and evaluated for both synchronous and asynchronous implementations. This method distributes computational workload differently from the conventional approach used in circuit switching networks.
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