Mr. Saeid Seyedi is a researcher in the Young Researchers and Elite Club, I.A.U since 2018. His current research is concerned with QCA-based technology and Nano and he has worked on many research projects and has published papers in various journals and conference proceedings. His research interests include Nanotechnology, Quantum-dot Cellular Automata (QCA).
Approximate Full-Adder, Full-subtractor, and Full-Adder/Subtractor circuits based on QCA Saeid Seyedi, Hatam Abdoli 2025 29th International Computer Conference Computer Society of Iran Csicc 2025, 2025 QCA has garnered a lot of attention lately because to its promise for low latency, compact space, low complexity, and low power consumption. At the same time, a new nanotechnology paradigm called approximation computing simplifies computation high-performance design method, and becomes a low-power for calculation circuits. Additionally, a lot of digital circuit design has made use of the XOR gate. A crucial part of QCA technology, the full-adder (FA) circuit is used for arithmetic logic unit operations such as subtraction, multiplication, and division. The design of approximation FA, full-subtractor (FS), and full-adder/subtractor (F$A$/S) has been extensively studied. The approximate F$A$/S designs demonstrated just 10 cells utilized in implementation, an area of 0.01μm2, and a delay of 0.5 clock phases. Specifically, the approximate FA and FS designs achieved an area of 0.01 μm2 and a latency of 0.5 clock phases. By using the QCADesigner tool for functional verification, the efficacy of these designs was confirmed. Three new and innovative QCA-based circuits-FA/S, FS, and FA approximations-are presented in this work. Accessing the components without being surrounded by other cells is made easy by the fact that each design has outputs on one side and the inputs on the other side.
Efficient design and implementation of approximate FA, FS, and FA/S circuits for nanocomputing in QCA Saeid Seyedi, Hatam Abdoli Plos One, 2024 Recently, there has been a lot of research in Quantum Cellular Automata (QCA) technology because it promises low power consumption, low complexity, low latency, and compact space. Simultaneously, approximate arithmetic, a new paradigm in computing, streamlines the computational process and emerges as a low-power, high-performance design approach for arithmetic circuits. Furthermore, the XOR gate has been widely used in digital design and is a basic building block that can be used in many upcoming technologies. The full adder (FA) circuit is a key component of QCA technology and is utilized in arithmetic logic operations including subtraction, multiplication, and division. A great deal of research has been done on the design of approximate FA, full subtractor (FS), full adder/subtractor (FA/S), and 4-bit ripple carry adder (RCA) based on XOR logic, establishing them as essential components in the creation of QCA-based arithmetic circuits. This study presents three new and effective QCA-based circuits, based on XOR logic: an approximate FA, an approximate FS, an approximate FA/S, and an approximate 4-bit ripple carry adder (RCA). Interestingly, some designs have inputs on one side and outputs on the other, making it easier to reach the components without being encircled by other cells and leading to a more effective circuit design. In particular, a delay of 0.5 clock phases, an area of 0.01 μm2, and implementation utilizing just 11 cells was accomplished in the approximate FA and subtractor designs. In a similar vein, the estimated FA/S designs showed 0.5 clock phase delay, 0.01 μm2 area, and 12 cells used for implementation. An approximate 4-bit RCA is proposed using 64 QCA cells. The effectiveness of these designs is evaluated through functional verification with the QCADesigner program. According to simulation results, these proposed solutions not only function well but significantly outperform previous ideas in terms of speed and space. The proposed FA, FS, and RCA designs surpassed the previous best designs by 21%, 21%, and 43%, respectively, in terms of cell count.
Quantum-dot cellular automata-based approximate CSA and RBS with ultra-low cells S Seyedi, H Abdoli Journal of Computational Electronics 25 (3), 97 , 2026 2026
A compact and efficient QCA-based nano-scale circuit for morphological operations in image processing S Seyedi, H Abdoli, M Sefidabian Cluster Computing 29 (3), 184 , 2026 2026
A scalable architecture for quantum information processors: qubit partitioning, placement, and scheduling for minimized circuit latency Z Alimohammadi, N Mohammadzadeh, S Seyedi, H Abdoli EPJ Quantum Technology , 2026 2026
A Novel Nano-Scale Shift Register Architecture with Rest Function Based on Quantum Dots L Fu, S Seyedi IETE Journal of Research, 1-6 , 2025 2025 Citations: 1
Design and assessment of even parity generator and checker circuits for nanoscale communication networks using quantum dots S Seyedi, H Abdoli Scientific Reports 15 (1), 26022 , 2025 2025 Citations: 1
A new design of an efficient configurable circuit based on quantum-dot technology for digital image processing L Tang, T Kong, S Seyedi Analog Integrated Circuits and Signal Processing 122 (3), 36 , 2025 2025 Citations: 14
Approximate Full-Adder, Full-Subtractor, and Full-Adder/Subtractor Circuits Based on QCA S Seyedi, H Abdoli 2025 29th International Computer Conference, Computer Society of Iran (CSICC … , 2025 2025 Citations: 3
A fault tolerant CSA in QCA technology for IoT devices S Seyedi, H Abdoli Scientific Reports 15 (1), 3396 , 2025 2025 Citations: 23
An approximate FA, FS, and FA/S circuits based on QCA technology S Seyedi, H Abdoli 29th International Computer Conference (Computer Society of Iran, Sharif … , 2025 2025
Predicting Concentration of Particulate Matter (PM2. 5) in Hamedan Using Machine Learning Algorithms AK Ghassabpour, H Abdoli, M Mansoorizadeh, S Seyedi 2024 15th International Conference on Information and Knowledge Technology … , 2024 2024 Citations: 1
An efficient new design of nano-scale comparator circuits using quantum-dot technology M Darbandi, S Seyedi, HMR Al-Khafaji Heliyon 10 (18) , 2024 2024 Citations: 20
Efficient design and implementation of approximate FA, FS, and FA/S circuits for nanocomputing in QCA S Seyedi, H Abdoli PloS one 19 (9), e0310050 , 2024 2024 Citations: 26
Quantum-based serial-parallel multiplier circuit using an efficient nano-scale serial adder H Wu, S Jiang, S Seyedi, NJ Navimipour Informacije MIDEM 54 (2) , 2024 2024 Citations: 8
A Nano-based High-Speed QCA circuit for Information Security with Image Masking S Seyedi, H Abdoli 15th International Conference on Information and Knowledge Technology , 2024 2024 Citations: 3
Optimized design of Lower Complexity Reversible Toffoli Gate in QCA Technology S Seyedi, H Abdoli 6th Iranian International Conference on Microelectronics , 2024 2024 Citations: 1
An efficient design of a Crossbar Switch for Banyan Network and Nano Communication based on QCA technology S Seyedi, H Abdoli 11th International Symposium on Telecommunication (IST'2024) , 2024 2024
An Approximate XOR-based Full-Adder in Quantum Cellular Automata S Seyedi, H Abdoli Khwarizmi International Conference on Science and Technology 1, https … , 2024 2024
A space-efficient universal and multi-operative reversible gate design based on quantum-dots S Seyedi, NJ Navimipour Journal of Circuits, Systems and Computers 32 (10), 2350166 , 2023 2023 Citations: 12
A fault-tolerance nanoscale design for binary-to-gray converter based on QCA S Seyedi, NJ Navimipour IETE Journal of Research 69 (5), 2991-2998 , 2023 2023 Citations: 49
A fault-tolerant image processor for executing the morphology operations based on a nanoscale technology S Seyedi, NJ Navimipour Multimedia Tools and Applications 82 (2), 2489-2502 , 2023 2023 Citations: 15
MOST CITED SCHOLAR PUBLICATIONS
An optimized design of full adder based on nanoscale quantum-dot cellular automata S Seyedi, NJ Navimipour Optik 158, 243-256 , 2018 2018 Citations: 114
Design and evaluation of a new structure for fault-tolerance full-adder based on quantum-dot cellular automata S Seyedi, NJ Navimipour Nano communication networks 16, 1-9 , 2018 2018 Citations: 79
Designing an efficient fault tolerance D-latch based on quantum-dot cellular automata nanotechnology S Seyedi, M Darbandi, NJ Navimipour Optik 185, 827-837 , 2019 2019 Citations: 64
A fault-tolerance nanoscale design for binary-to-gray converter based on QCA S Seyedi, NJ Navimipour IETE Journal of Research 69 (5), 2991-2998 , 2023 2023 Citations: 49
An optimized three-level design of decoder based on nanoscale quantum-dot cellular automata S Seyedi, NJ Navimipour International Journal of Theoretical Physics 57 (7), 2022-2033 , 2018 2018 Citations: 41
An efficient structure for designing a nano-scale fault-tolerant 2: 1 multiplexer based on quantum-dot cellular automata S Seyedi, NJ Navimipour Optik 251, 168409 , 2022 2022 Citations: 38
A new coplanar design of a 4‐bit ripple carry adder based on quantum‐dot cellular automata technology S Seyedi, B Pourghebleh, N Jafari Navimipour IET Circuits, Devices & Systems 16 (1), 64-70 , 2022 2022 Citations: 34
A new cost-efficient design of a reversible gate based on a nano-scale quantum-dot cellular automata technology S Seyedi, A Otsuki, NJ Navimipour Electronics 10 (15), 1806 , 2021 2021 Citations: 34
A new design for 4-bit RCA using quantum cellular automata technology S Seyedi, B Pourghebleh Optical and Quantum Electronics , 2022 2022 Citations: 31
Designing a three-level full-adder based on nano-scale quantum dot cellular automata S Seyedi, NJ Navimipour Photonic Network Communications 42 (3), 184-193 , 2021 2021 Citations: 30
Designing a new 4: 2 compressor using an efficient multi-layer full-adder based on nanoscale quantum-dot cellular automata S Seyedi, NJ Navimipour International Journal of Theoretical Physics 60 (7), 2613-2626 , 2021 2021 Citations: 30
Designing a multi‐layer full‐adder using a new three‐input majority gate based on quantum computing S Seyedi, N Jafari Navimipour Concurrency and Computation: Practice and Experience, e6653 , 2021 2021 Citations: 30
Efficient design and implementation of approximate FA, FS, and FA/S circuits for nanocomputing in QCA S Seyedi, H Abdoli PloS one 19 (9), e0310050 , 2024 2024 Citations: 26
Design and analysis of fault-tolerant 1: 2 demultiplexer using quantum-dot cellular automata nano-technology S Seyedi, NJ Navimipour, A Otsuki Electronics 10 (21), 2565 , 2021 2021 Citations: 26
A fault tolerant CSA in QCA technology for IoT devices S Seyedi, H Abdoli Scientific Reports 15 (1), 3396 , 2025 2025 Citations: 23
New design of a 4-bit ripple carry adder on a nano-scale quantum-dot cellular automata S Seyedi, A Ghanbari, NJ Navimipour Moscow University Physics Bulletin 74 (5), 494-501 , 2019 2019 Citations: 22
An efficient new design of nano-scale comparator circuits using quantum-dot technology M Darbandi, S Seyedi, HMR Al-Khafaji Heliyon 10 (18) , 2024 2024 Citations: 20
A fault-tolerant image processor for executing the morphology operations based on a nanoscale technology S Seyedi, NJ Navimipour Multimedia Tools and Applications 82 (2), 2489-2502 , 2023 2023 Citations: 15
A new design of an efficient configurable circuit based on quantum-dot technology for digital image processing L Tang, T Kong, S Seyedi Analog Integrated Circuits and Signal Processing 122 (3), 36 , 2025 2025 Citations: 14
A new nano-scale and energy-optimized reversible digital circuit based on quantum technology S Seyedi, N Jafari Navimipour, A Otsuki Electronics 11 (23), 4038 , 2022 2022 Citations: 14