Almost two years of challenge are behind us. Hopefully, this year we will start returning back to normal life. The\ntime will tell if we learned something or just wasted time as on many occasions before.<\/p>\n
In the journal \u201cElectronics\u201d, we open this year with four original research papers that provide results in the field of\nsensor networks, antennas, digital system design, and power electronics.<\/p>\n
In the first paper entitled \u201cEnergy Optimization in a Multihop Sensor Network for a WBAN Application,\u201d authors, V. Tyagi, S. H. Gupta, and M. Kaushik, proposed an energy efficient data transmission for multi-hop network based on Particle Swarm Optimization (PSO) algorithm. The provided results show a significant reduction in energy consumption while keeping the node-to-sink distance constant<\/p>\n
The paper \u201cDual Notched-Band Crescent Moon Dielectric Resonator Antenna,\u201d by M. Debab, A. Bendaoudi, and Z. Mahdjoub, proposes a dual-band notched ultra-wideband (UWB) dielectric resonator antenna. Obtained simulation results demonstrate that the proposed CMDR antenna achieves satisfactory UWB performance, with an impedance bandwidth of around 88.7%, covering the frequency band of 3.2-8.3 GHz,\nexcluding a rejection band for the WLAN and ITU 7 GHz band.<\/p>\n
In the paper \u201cOn The Implementation of Densely Packed Decimal Number System based Adder: Prospects and Challenges,\u201d authored by S. K. Beura, R. U. Ahmed, B. P. Devi, and P. Saha, reports the pros and cons of the Densely Packed Decimal (DPD) coding techniques. Additionally, performance\nparameters (such as delay, power consumption) have been evaluated through CMOS gpdk45 nm technology.<\/p>\n
Finally, the paper \u201cHarmonic Elimination in Uniform Step Nine-Level Inverter Using Differential Evolution: Experimental Validation,\u201d by R. F. Abdelgoui, R. Taleb, A. Bentaallah,\nand F. Chabni, presents the application of differential evolution algorithm for computing optimal switching angles for a singlephase nine-level inverter to improve the output voltage quality.\nMoreover, the authors built a laboratory prototype based on STM32F407 microcontroller in order to the effectiveness of the proposed modulation method.<\/p>\n
I thank the authors for their contribution to this issue of\nthe journal and to all the reviewers who participated in the editorial process by providing valuable comments in timely\nmanner to the editors and the authors.<\/p>\n