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Comm. & NW

Satellite Radio frequency allocation and regulation

Electromagnetic energy travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays. The human eye can only detect only a small portion of this spectrum called visible light. A radio detects a different portion of the spectrum, and an x-ray machine uses …

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Satellite communications payload and transponder testing

Satellite communications systems must cover a diverse set of user requirements in direct broadcast, wireless communications and remote sensing applications for both commercial and government systems. These systems must operate reliably around the clock with multi-decade system longevity. They must be thoroughly tested to ensure a quality of service over …

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DARPA Ouija employing very low- Earth orbit (VLEO) satellite sensors to predict military high-frequency (HF) radio communications

Whether in the field of battle, search-and-rescue or humanitarian aid efforts, the ability to share real-time, networked information between ground, sea and airborne forces is rapidly becoming the defining factor in a mission’s success. However modern  satellite and other  communications systems in higher frequecies are under constant threat from adversaries …

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Connected Vehicles and V2X Vehicle to everything technology

Today 1.35M people die each year in automobile crashes globally; 38,000 in the U.S. alone, the equivalent of two 747s crashing in mid-air every single week. Counterintuitively, despite the COVID-19 pandemic leading to fewer drivers on the roads and a significant reduction in the number of miles driven, the latest …

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From the ground to the skies: How SDRs are shaping the future of military communication

Software Defined Radio (SDR) refers to a radio communication system where most of the traditional radio hardware components, such as filters, amplifiers, and modulators/demodulators, are replaced with software running on a general-purpose computer. In an SDR system, the analog signals received by the antenna are digitized by an analog-to-digital converter …

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Satellite Communications technologies and trends

As the world national economies become more global and as all parts of the globe, the oceans, and the atmosphere are exploited by human enterprise, the need for effective wireless interconnection via terrestrial wireless and satellite communications will expand.   Satellites play a crucial role to improve lives in today’s …

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5G key technologies from Radio interface, multiple access schemes, 5G Networking to Cognitive networks driving Worldwide Race

Mobile communications systems have evolved through wireless technology innovation into 2G, 3G, and then 4G to keep pace with ever-increasing voice and data traffic. All mobile communication system generations have had a clear key application driver: 1G for analog voice, 2G for digital voice and text messaging, 3G for multimedia …

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Telecommunications is a critical infrastructure and needs to be protected from ever increasing cyber threats

Cyber-attacks are continuously growing in size and breadth, targeting organizations of all sizes across sectors, and telecom sector is no exception. According to PwC’s Global State of Information Security, 2016, IT security incidents in the telecoms sector increased 45% in 2015 compared to the year before. The rising danger posed …

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Integrating Quantum Key Distribution (QKD) in 5G cellular networks will make it hackproof

The coming 5G standard will offer towering benefits, such as enhanced speed and performance, lower latency, and better efficiency. The 5G networks are rapidly adopting various developing technologies to provide high-speed data delivery. The 5G technology is being used in a variety of applications such as smart city, Industrial Internet …

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China developing high speed and secret submarine communication systems and technologies including Quantum Key Cryptography (QKD)

The PRC has the largest navy in the world, with an overall battle force of approximately 350 ships and submarines including over 130 major surface combatants. The PLAN remains engaged in a robust shipbuilding and modernization program that includes submarines, surface combatants, amphibious warfare ships, aircraft carriers, and auxiliary ships …

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