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Comm. & NW

Functional testing of Satellite communications payload and transponder

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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Antennas and Advanced Antenna Systems (AAS) breakthroughs to accelerate large scale deployments of 5G networks

End-user performance requirements continue to increase, putting high demands on the radio access network (RAN) to deliver increased coverage, capacity and end-user throughput. The antenna is an invaluable segment of any wireless network. Early 2G and 3G systems operated with two receive antennas spaced at least a lambda spacing to …

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Arrival of blazing-fast 5G millimeter wave enabled by 5G NR technologies

The global race is now on to develop 5G, short for 5th generation mobile networking or 5th generation wireless systems which will change the face of the mobile communication. Most global 5G deployments kicked off using mid-band spectrum in the 3-4 GHz range, and now the second wave of 5G …

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Aero mobile Satellite communication technologies for Aircrafts and UAVs

The future of aviation worldwide is one of significant continuing growth in air travel, air cargo, and private general aviation. Passenger services communications are expected to generate revenue for airlines and service providers. They will require a “critical mass” of users to justify costly avionics installation and operating costs, hence …

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Digital Signal Processing (DSP) for wireless communications

The first-generation (1G) cellular wireless mobile system were analog and were based on frequency-division-multiple access (FDMA) technology. The second boost for the cellular industry came from the introduction of the second-generation (2G) digital technology standards, including Global System for Mobile (GSM), IS-136 (Time Division Multiple Access, TDMA), and Personal Digital …

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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. Every generation of wireless technology brought many improvements including speed enabling many new applications. 1G was analog cellular. 2G technologies, such as CDMA, GSM, and TDMA, …

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Satellite or Space-based cellular networks to provide Broadband service directly to cell phones

Recently many companies have launched large constellations of satellites to deliver broadband Internet to serve nearly 2 billion people around the world that live in areas that lack mobile coverage, mostly far from major cities, which makes building a network of terrestrial cell towers to connect them prohibitively expensive. These …

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Global race for 5G for connected homes, autonomous vehicles and drones, smart cities and Military

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. Every generation of wireless technology brought many improvements including speed enabling many new applications. 1G was analog cellular. 2G technologies, such as CDMA, GSM, and TDMA, …

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Massive MIMO key to delivering mobile 5G will move to extreme MIMO in 6G

Massive MIMO ( Multiple Input Multiple Output ) is the new wireless access technology in 5G, in both sub-6 GHz and mmWave bands.  The main idea is to use multiple antennas at a transmitter and receiver to improve the performance of wireless communication systems. Massive MIMO ( or very large …

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Reconfigurable intelligent surface (RIS) or Large Intelligent Surface (LIS) creating an intelligent electromagnetic environment for wireless communications

Reconfigurable intelligent surface (RIS)—known also as intelligent reflecting surface (IRS), and large intelligent surface (LIS)—is a programmable structure that can be used to control the propagation of electromagnetic (EM) waves by changing the electric and magnetic properties of the surface. These elements form a low-profile 2D reflecting or transmission array, …

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