Original Research Paper Cognitive Radio Networks
1. Joint Improvement of Spectral and Energy Efficiency in Energy Harvesting Based Cognitive Radio Networks

M. Sadeghian Kerdabadi; R. Ghazizadeh; H. Farrokhi

Articles in Press, Accepted Manuscript, Available Online from 10 May 2021

http://dx.doi.org/10.22061/jecei.2021.7501.396

Abstract
  Background and Objectives: In an energy harvesting cognitive radio network, both energy efficiency and spectrum efficiency can be improved, simultaneously. In this paper, we consider an energy harvesting-based multi-antenna cognitive radio network to execute cooperative spectrum sensing, data transmission ...  Read More

Original Research Paper Electrical Machines
2. Modeling and Analysis of Flat Double-sided Linear Permanent Magnet Synchronous Generator by Magnetic Equivalent Circuit

S. Niknafs; A. Shiri; S. Bagheri

Articles in Press, Accepted Manuscript, Available Online from 10 May 2021

http://dx.doi.org/10.22061/jecei.2021.7782.434

Abstract
  Background and Objectives: In recent years, linear generators have been broadly utilized to harness wave motion energy. There are various types of linear generators with different magnetic and geometric structures. Among these generators, linear permanent magnet synchronous generator provides a higher ...  Read More

Original Research Paper Software Systems
3. On Multiple Objective of Software Rejuvenation Models with Several Policies

Z. Rahmani Ghobadi; H. Rashidi; S. H. Alizadeh

Articles in Press, Accepted Manuscript, Available Online from 15 May 2021

http://dx.doi.org/10.22061/jecei.2021.7905.448

Abstract
  Background and Objectives: Applications and systems software that are running constantly become obsolete due to the accumulation of error conditions or the depletion of resources like physical memory or performance degradation. In this regard, software rejuvenation has been proposed to deal with such ...  Read More

Original Research Paper Micro Sensors
4. Design and Fabrication of Hemispherical Shell Resonator by Glass Blowing Method

A. Khooshehmehri; A. Eslami Majd; S. A. Hosseini

Articles in Press, Accepted Manuscript, Available Online from 29 May 2021

http://dx.doi.org/10.22061/jecei.2021.7759.429

Abstract
  Background and Objectives: The Hemispherical Resonator Gyroscope (HRG) has been a valuable choice for the aerospace industry due to its low noise, good performance, and long lifetime. Its main part consists of a hemispherical shell resonator (HSR). Recently, with the idea of using MEMS technology and ...  Read More

Original Research Paper Hardware
5. Int-TAR: An Intelligent Thermal-Aware Routing Algorithm for 3D NoC

Z. Shirmohammadi; M. Mahmoudi; M. Rostamnezhad

Articles in Press, Accepted Manuscript, Available Online from 15 May 2021

http://dx.doi.org/10.22061/jecei.2021.7750.428

Abstract
  Background and Objectives: Thermal problem is one of the main challenges in 3D on-chip networks. Inappropriate traffic distribution, poor heat dissipation, cooling restriction for layers away from the chip heatsink are the main reasons for this problem. Methods: This paper proposes a new intelligent ...  Read More

Original Research Paper Artificial Intelligence
6. Presenting New Methods for Improving the Ant-Miner Algorithm

H. Nosrati Nahook; S. Tabatabaei

Articles in Press, Accepted Manuscript, Available Online from 29 May 2021

http://dx.doi.org/10.22061/jecei.2021.7856.441

Abstract
  Background and Objectives: The Ant-Miner algorithm works based on Ant Colony Optimization as a tool for data analysis , and is used to explore classified laws from a set of data. In the current study, two new methods have been proposed for the purpose of optimizing this algorithm. The first method adopted ...  Read More

Original Research Paper Paralleling Louvain Community Detection
7. Parallel Louvain Community Detection Algorithm Based on Dynamic Thread Assignment on Graphic Processing Unit

M. Mohammadi; M. Fazlali; M. Hosseinzadeh

Articles in Press, Accepted Manuscript, Available Online from 19 June 2021

http://dx.doi.org/10.22061/jecei.2021.7771.432

Abstract
  Background and Objectives: Louvain is a time-consuming community detection algorithm especially in large-scale networks. Using Graphic Processing Unit (GPU) in order to calculate modularity sigma, which is a major processing section in Louvain algorithm, can reduce algorithm execution time and make it ...  Read More

Original Research Paper Power Electronics
8. A SOGI-PLL-Based Feedback-Feedforward Control System for Three-Phase Dynamic Voltage Restorer in the Distribution Grid

R. Nasrollahi; H. Feshki Farahani; M. Asadi; M. Farhadi-Kangarlu; P. Amiri

Articles in Press, Accepted Manuscript, Available Online from 19 June 2021

http://dx.doi.org/10.22061/jecei.2021.7942.457

Abstract
  Background and Objectives: Due to the increased sensitive loads, improving power quality in distribution grids by custom power tools is one of the important fields of electrical engineering. This paper proposes a new kind of three-phase three-wire dynamic voltage restorer (without including storage sources ...  Read More

Original Research Paper Communications
9. A Novel Analog Predistortion Linearizer Based on a Schottky diode for Communication Applications

R. Karimzadeh Baee; A. Rahati Belabad; H. Moazzen; A. Ahmadi

Articles in Press, Accepted Manuscript, Available Online from 10 July 2021

http://dx.doi.org/10.22061/jecei.2021.7851.440

Abstract
  Background and Objectives: In order to compensate the nonlinearity, several linearization approaches such as feedback, feed-forward, and predistortion have been proposed. Among these linearization methods, the analog predistortion (APD) method is very suitable for the power amplifier and TWTA linearization, ...  Read More

Review paper Wireless Sensor Network
10. A Review on Reliable Data Transport Protocols in Wireless Sensor Networks

S. Shams Shamsabad Farahani

Articles in Press, Accepted Manuscript, Available Online from 11 July 2021

http://dx.doi.org/10.22061/jecei.2021.7636.413

Abstract
  Background and Objectives: Reliable data transmission and congestion control are considered as the transport layer primary functions in Wireless Sensor Networks (WSNs). WSNs are a specific category of wireless ad-hoc networks where their performance is highly affected by their characteristics and limitations. ...  Read More

Original Research Paper Bioelectric
11. Voltage Control of Flexible-Joint Robot Manipulators using Singular Perturbation Technique for Model Order Reduction

H. Hooshmand; M. M. Fateh

Articles in Press, Accepted Manuscript, Available Online from 17 July 2021

http://dx.doi.org/10.22061/jecei.2021.7727.424

Abstract
  Background and Objectives: Robot manipulator with flexible-joints is very complex nonlinear system whose control is one of the most challenging issues in the control word. Therefore, the design of voltage-based controller in addition, using of order reduction methods can reduce the complexity of the ...  Read More