Browsing by Author "Navimipour,N.J."

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Citation - Scopus: 26
Cloud-based non-destructive characterization
(Elsevier, 2023) Heidari,A.; Navimipour,N.J.; Otsuki,A.
Cloud services have grown in popularity; businesses, organizations, industries, and academic institutions use cloud services such as Cloud Non-destructive Characterization Testing (CNDCT), also known as Cloud Testing (CT). Vendors compete to deliver highly reliable services, diverse requirements, and product qualities. The CT platforms can test cloud-based systems or use the cloud for testing purposes: both approaches have sparked interest in the research. Cloud testing draws many companies and sectors worldwide by offering potential solutions for managing software applications and providing convenient testing environments. Because of cloud computing, Testing as a Service (TaaS) was born. Given the capabilities of TaaS, it has created several issues and obstacles, particularly in cloud-based, non-destructive testing environments. So, this chapter reviews and addresses the obstacles and benefits of CNDCT, including a theoretical comparison between the cloud-based testing environment and traditional standard system testing. © 2024 Elsevier Inc. All rights reserved.
Citation - Scopus: 1
An Improved Evolutionary Method for Social Internet of Things Service Provisioning Based on Community Detection
(Institute of Electrical and Electronics Engineers Inc., 2024) Tawfeeq,B.A.; Rahmani,A.M.; Koochari,A.; Navimipour,N.J.
Social IoT (SIoT) refers to socializing in the Internet of Things (IoT), where things generate social relationships. Due to the development of objects and issues such as delayed response, slow search, and composite service process, distributed object service discovery, selection, and composition based on the social structure have become essential challenges in the SIoT. Therefore, it is necessary to provide an efficient method for evaluating the effectiveness of service discovery in identifying suitable devices to offer requested services and the best composition strategy for combining requested services. This paper presents a new community detection algorithm that detects IoT devices with social connections in the SIoT network to facilitate service discovery and composition by reducing search space. Additionally, it introduced a new service provisioning algorithm to optimize service discovery and composition, called An Improved Genetic Algorithm based on Community Detection (IGA-CD). Its effectiveness in detected communities is better than other methods in computation modularity, execution time, and cluster assignment quality methods by determining the network's ideal devices. Experimental results demonstrate the efficacy of the proposed algorithms, which outperform other approaches in terms of scalability, efficiency, and flexibility. The IGA-CD average execution time is 0.129 seconds, which proves its efficiency and faster composition. © 2013 IEEE.
Citation - Scopus: 7
A New Nano-Design of an Efficient Synchronous Full-Adder/Subtractor Based on Quantum-Dots
(ISRES Publishing, 2023) Kerestecioğlu, Feza; Navimipour,N.J.; Kerestecioglu,F.
Quantum-dot cellular automata (QCA), known as one of the alternative technologies of CMOS technology, promises to design digital circuits with extra low-power, extremely dense, and high-speed structures. Moreover, the next generation of digital systems will be used QCA as desired technology. In designing arithmetic circuits, efficient designs such as full-adder and full-subtractor can play a significant role. In addition, they are considering the most used structures in digital operations. Furthermore, full-adder and fullsubtractor are always effective parts of all complex and well-known circuits such as Arithmetic Logic Unit (ALU), Microprocessors, etc. This paper proposes low complexity and high-speed QCA coplanar synchronous full-adder/subtractor structures by applying formulations based on the Exclusive-OR gate to decrease energy consumption. The proposed design is simulated using QCADesigner 2.0.3. The simulation results confirm the efficiency of the proposed circuit. Moreover, comparative investigation indicates the superiority of proposed designs compared to state-of-the-art designs. Finally, the suggested QCA coplanar synchronous fulladder/subtractor shows 5.88% and 7.69% improvement in consumed cells relative to the best full adder and full subtractor, respectively. © 2023 Published by ISRES.