Abstract: In this design scheme, in order to improve the transmit rate and the reliability of the wireless communication links, an improved extended space index modulation (IESIM) scheme is proposed ...

Abstract: Carrier overlapping pulsewidth modulation (COPWM) is proposed to address the level degradation issue in carrier-based pulsewidth modulation (CBPWM) at low modulation index. Due to its unique ...

Mohsen Baqery is a Guide Staff Writer from Turkey. With a passion for gaming that borders on obsession, Mohsen thrives on guiding fellow gamers through the most challenging obstacles while exploring ...

An alien comet, a Martian volcano, a man’s fall from the sun and a groundbreaking telescope’s first images: Here are the most jaw-dropping space photos of 2025. When you purchase through links on our ...

There may be no enterprise that lends itself so well to the camera as space travel. The universe is a riot of color and light—of galaxies and planets and brightly hued moons. The people who explore ...

Section 1. Purpose. Superiority in space is a measure of national vision and willpower, and the technologies Americans develop to achieve it contribute substantially to the Nation’s strength, security ...

WASHINGTON — The White House issued a sweeping executive order on space policy Dec. 18 covering topics from NASA’s exploration plans to space security. The order, “Ensuring American Space Superiority, ...