This paper reports a novel piezoelectric energy harvester incorporated on a waistbelt for power generation from waist movements. The device is composed of multiple piezoelectric disks in 3 D-printed encapsulations and ...

Cr:Colquiriites (Cr:LiCAF, Cr:LiSAF, and Cr:LiSGaF) are well-known for their broad emission bands in the near-infrared region. Unfortunately, due to their relatively weak thermomechanical strength, average powers from ...

A novel transmission scheme is introduced for efficient data transmission by conveying additional information bits through jointly changing the index and number of active subcarriers within each orthogonal frequency division ...

Automatic-repeat-request (ARQ) as a MAC layer mechanism and artificial noise (AN) as a physical layer mechanism along with the help of maximal ratio combining (MRC), are jointly designed to achieve secrecy. Basically, a ...

Rare earth elements play a pivotal role in modern technologies, therebydriving an escalating demand for their procurement. To effectively extractthese elements from aqueous solutions, it is imperative to explore innovativesorbent ...

In this study, we present a novel multi-user scheme in which space-time block coding (STBC) is exploited for transmitting data in two rounds in a multiple-input multiple-output (MIMO) fashion while orthogonal frequency ...

Massive MIMO has been classified as one of the high potential wireless communication technologies due to its unique abilities such as high user capacity, increased spectral density, and diversity among others. Due to the ...

rones or unmanned aerial vehicles (UAVs) communication technology, which has recently been thoroughly studied and adopted by 3GPP standard (Release 15) due to its dynamic, flexible, and flying nature, is expected to be ...

Ensuring secure communication for internet of things (IoT) has drawn much attention because of the lim itation in the use of conventional cryptographic techniques owing to the unique features of IoT devices such as ...

We have experimentally and numerically investigated the power scaling capacity of diode edge-pumped Cr:LiCAF slab lasers employing low chromium doped samples and showed their potential to exceed 10 W output power level ...