ORCID Profile
0000-0003-4856-9119
Current Organisation
Deakin University
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Publisher: Trans Tech Publications, Ltd.
Date: 11-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.403-408.3392
Abstract: Quantum-dot cellular automata (QCA) is an emerging nanotechnology that provides faster speed, smaller size and lower power consumption compared to the current transistor-based technology. Adder/ subtractor is a useful component for the design of many computation systems and functional circuits. This paper proposes a practical XOR design in QCA. Then the first adder/subtractor circuit in QCA is designed and simulated using the proposed XOR design. Results of simulation were carried out using QCADesigner.
Publisher: Springer Science and Business Media LLC
Date: 02-07-2013
Publisher: American Scientific Publishers
Date: 12-2014
Publisher: Elsevier BV
Date: 11-2021
Publisher: Springer Science and Business Media LLC
Date: 24-10-2021
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: Springer Science and Business Media LLC
Date: 06-0023
Publisher: Informa UK Limited
Date: 20-10-2020
Publisher: Wiley
Date: 03-08-2020
DOI: 10.1002/DAC.4557
Publisher: Walter de Gruyter GmbH
Date: 25-05-2021
Abstract: A microring resonator (MRR) and an add/drop devices are presented to generate picosecond solitonic pulse and signal as multichannel localized wavelengths, applicable for WDM-based free space optics (FSO) communication. A Gaussian pulse is inputted to the first ring resonator of the proposed system. Because of the nonlinear Kerr effect, chaotic signals are created. The second MRR filters the generated signals and shape solitonic pulses, where the accurate FWHM of 20 ps with intensity of 2.45 W are obtained. The add/drop device is applied for tuning the solitonic pulses. Results indicate that a range of solitonic wavelengths from 1550 nm to 1600 nm are obtained, where FSR and FWHM are 144 pm and 5 pm, respectively. Finally, performance of the proposed MRR system is evaluated in terms of bit error rate (BER) and Q factor. In the analysis, the proposed solitonic pulse is compared to conventional counterparts. Using the proposed MRR system, BER and Q factor of WDM-based FSO are considerably improved.
Publisher: Springer Science and Business Media LLC
Date: 15-04-2023
Publisher: Springer Science and Business Media LLC
Date: 02-2013
Publisher: Springer Science and Business Media LLC
Date: 26-09-2021
Publisher: Elsevier BV
Date: 07-2022
Publisher: Wiley
Date: 05-05-2021
DOI: 10.1002/DAC.4849
Abstract: With the ever‐growing use of active internet devices, the Internet of Things (IoT) has achieved vast popularity at present. Authentication technology is essential for the success of integrating IoT and cloud computing. Recently, the adversary capabilities are enhanced, and the current authentication techniques are vulnerable in plenty of possible network attacks. This paper presents a secure and lightweight authentication protocol for IoT‐based cloud environment. The proposed scheme can withstand various attacks and provide secure mutual authentication and anonymity by utilizing secret parameters and biometric. Lightweight crypto modules are adopted to pursue the best energy efficiency. The AVISPA tool is used to evaluate the protocol's performance. The obtained results indicate that the proposed protocol can effectively resist all kinds of known vulnerabilities.
Publisher: Wiley
Date: 03-09-2020
DOI: 10.1002/SPE.2888
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 08-2022
Publisher: Informa UK Limited
Date: 05-01-2022
Publisher: Springer Science and Business Media LLC
Date: 09-10-2019
Publisher: Springer Science and Business Media LLC
Date: 25-09-2020
Publisher: Wiley
Date: 14-02-2013
DOI: 10.1002/SEC.712
Publisher: American Scientific Publishers
Date: 09-2015
Publisher: Trans Tech Publications, Ltd.
Date: 12-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.622-623.545
Abstract: Quantum-dot cellular automata (QCA) is an emerging nanotechnology that promises faster speed, smaller size, and lower power consumption compared to the transistor-based technology. Moreover, XOR is a useful component for the design of many logical and functional circuits. This paper proposes a novel and efficient QCA XOR design. The proposed XOR design has been compared to a few recent designs in terms of area, speed and complexity. Comparison of results illustrates significant improvements in our design as compared to traditional approaches. Also simulation proves that the proposed XOR design is completely robust and more sustainable to high input frequency as compared to other designs. This robustness is highly significant when this component is applied for realizing larger designs.
Publisher: Springer Science and Business Media LLC
Date: 29-10-2020
Publisher: Elsevier BV
Date: 03-2021
Publisher: Springer Science and Business Media LLC
Date: 26-12-2022
Publisher: IEEE
Date: 07-2012
Publisher: IEEE
Date: 07-2012
Publisher: Inderscience Publishers
Date: 2021
Publisher: Wiley
Date: 23-04-2020
DOI: 10.1002/SPE.2839
Publisher: Springer Science and Business Media LLC
Date: 17-08-2019
Publisher: Springer Science and Business Media LLC
Date: 14-04-2021
Publisher: Springer Science and Business Media LLC
Date: 23-04-2020
Publisher: IEEE
Date: 07-2012
Publisher: Institution of Engineering and Technology (IET)
Date: 06-11-2012
Publisher: Springer Science and Business Media LLC
Date: 12-03-2021
Publisher: Wiley
Date: 04-10-2020
DOI: 10.1002/ETT.4127
Publisher: Elsevier BV
Date: 09-2020
Publisher: Wiley
Date: 16-05-2021
DOI: 10.1002/SPE.2986
Abstract: Divers and the huge amount of data produced by the Internet of Things (IoT) applications on the one hand, and inherent limitations of local equipment to handle these data, on the other hand, leads to present emerging closer technologies to the end‐users such as fog computing environment. Nevertheless, despite the numerous advantages of such an environment, it still needs state‐of‐the‐art approaches to cope with some inherent limitations. In the literature, resource placement strategies are generally proposed to address such problems, in which the IoT applications are mapped to fog nodes. However, despite its importance, different approaches attempt to enhance the overall system's performance and users' expectations: none of such approaches is satisfactory. In this article, to deploy IoT applications on fog nodes, an autonomic IoT service placement approach based on the gray wolf optimization scheme is proposed, enhancing the system's performance while considering execution costs. Besides, the autonomic concepts help make an appropriate automanagement system that fits better the fog environment's dynamic behavior. Simulation results demonstrate that the proposed approach outperforms the other approaches and converges to the solution in near‐optimal application deployment on fog nodes in respect of the performance of performing services that are 93.7%, the performance of the average waiting time for performed services that are 100%, the remaining services sent to an extra provisioned period that is zero.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: IEEE
Date: 07-2012
Publisher: Springer Science and Business Media LLC
Date: 03-05-2021
Publisher: Elsevier BV
Date: 12-2020
Publisher: Elsevier BV
Date: 11-2018
Publisher: Wiley
Date: 29-10-2021
DOI: 10.1002/SPE.3032
Abstract: Over the past few years, Internet of Things (IoT) applications have grown rapidly. The data‐intensive IoT applications that take advantage of cloud servers for computations and data storage will result in higher latency and other network traffic in the Internet core. IoT applications are characterized by their sensitivity to latency. As an ex le, delays will result in irreparable damage in the medical and healthcare industries. Cloud servers are no longer necessary because cloud computing utilizes fog nodes that are closer to users. Nodes with different hardware capabilities pose a significant challenge since they differ significantly in latency and traffic reduction. This article presented a metaheuristic‐based method using the non‐dominated sorting genetic algorithm II for data‐intensive IoT applications in fog infrastructure. Besides, we provide a new automatic method for managing data replica transmissions, including deploying them in a fog cloud environment. The proposed solution was evaluated in the iFogSim simulator and compared with two other data replica placement methods in different scenarios. The results showed a decrease in latency and cost for data access and an increase in data availability.
Publisher: Wiley
Date: 23-09-2021
DOI: 10.1002/SPE.3033
Abstract: Edge computing environment provides processing capability and computing at the network edge and close to users. Edge equipment includes small data centers that locally perform process and content delivery. Therefore, edge equipment management has received much attention due to the rapid growth of information and resources limitations. The content caching and proactive caching techniques are management methods of edge equipment resources. We recently witnessed the development of proactive caching mechanisms that have a crucial enabler in improving heavy traffic, energy, and bandwidth. Also, it has huge potential to increase the quick response time to users' requests that today, these services are demanded by many users and applications. This article prepares a systematic literature review content caching approach in the edge computing environment. The purpose of this study is to survey the research done on the proactive caching strategies in the edge computing environment to identify subjects that must be emphasized more in current and future research paths. This research has studied 71 articles ided into three classes: model‐based, machine‐learning‐based, and heuristic‐based. Next, we discuss content caching approaches based on critical factors such as performance metrics, case studies, utilized techniques, assessment tools, advantages, and disadvantages. Finally, open issues and challenges are presented, and the survey is concluded.
Publisher: Springer Science and Business Media LLC
Date: 16-04-2021
Publisher: Elsevier BV
Date: 08-2022
Publisher: Springer Science and Business Media LLC
Date: 23-04-2022
Publisher: Springer Science and Business Media LLC
Date: 29-10-2021
Publisher: Springer Science and Business Media LLC
Date: 15-11-2021
Publisher: Institution of Engineering and Technology (IET)
Date: 10-2020
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 03-2022
Publisher: Springer Science and Business Media LLC
Date: 04-04-2022
Publisher: Springer Science and Business Media LLC
Date: 15-06-2021
No related grants have been discovered for Ali Shahidinejad.