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Category: Telecommunications Engineering

Delivering 5G Devices to Market Will Bank on OTA Testing

The biggest challenge in testing 5G devices, as opposed to 4G/LTE, is the reliance on active antenna arrays and high RF frequencies. These frequencies are far higher than what we have ever used before in a commercial communication system. Frequency range 1 (FR1), which will transmit most of the traditional cellular communications traffic, has been designated for 450 to 7125 MHz. Frequency range 2 (FR2) will employ millimeter-wave (mmWave) frequencies (24,250 to 52,600 MHz) to deliver short-range, high-data-rate transmission. Higher…

Ada and RISC-V Secure Nvidia’s Future

As the electronic systems in today’s cars become more sophisticated, it rapidly ramps up the number of sensors feeding mission-critical data into the electronic control unit (ECU). For drivers, it’s imperative to feel confident that the advanced driver-assistance system (ADAS) hasn’t been compromised by something as seemingly benign as an auto-repair shop using non-authentic parts to repair the vehicle. Likewise, an OEM would want to mitigate liability in these situations and notify consumers if the system, and thus driver safety,…

Prevent Automotive Counterfeiting with Secure Authentication

As the electronic systems in today’s cars become more sophisticated, it rapidly ramps up the number of sensors feeding mission-critical data into the electronic control unit (ECU). For drivers, it’s imperative to feel confident that the advanced driver-assistance system (ADAS) hasn’t been compromised by something as seemingly benign as an auto-repair shop using non-authentic parts to repair the vehicle. Likewise, an OEM would want to mitigate liability in these situations and notify consumers if the system, and thus driver safety,…

Embedded AI Systems Benefit from Flashless MCUs

Use of artificial-intelligence (AI) techniques, based on machine learning and inference, is growing rapidly in embedded systems, including applications that employ image analysis, speech recognition, and predictive decision-making. However, AI workloads are notoriously compute- and performance-hungry, and the amount of storage required for AI data and code is far more than can be supported by the limited embedded memory in most MCUs. In addition, the processing performance of these AI applications competes with the need for lower power consumption. One…

From Saving Lives to Leveraging IoT—This Smart Hospital Does It All

At Maidstone Hospital, a leading hospital in the South East of England, providing general hospital and specialist complex care services to over 600,000 patients simply weren’t enough. Armed with an additional initiative to reduce its carbon footprint by 28% (by 2020 from a 2013 baseline) and cognizant on the importance and cost-saving potential of energy conservation, Maidstone set forth to drastically reduce its energy consumption. The first step in controlling its consumption involved measurement—a daunting task as the hospital is…

The Value of Personal Data

In some countries, all mineral rights are owned by the government.  In these countries, your family may have owned a plot of ground for generations.  But if the government thinks there’s oil under it, they can come in, drill a well in your back yard, and make millions off the oil they find—and not give you a cent.  And it’s all legal. Other countries with different traditions regarding property rights view this situation as unjust.  In the U. S., for…

New vulnerability in kidney cancer — ScienceDaily

A UT Southwestern researcher led a team that identified a new vulnerability in kidney tumors, the 10th most common cause of cancer death in men and women. In their investigation of the most common type of kidney cancer, called clear cell renal cell carcinoma (ccRCC), Qing Zhang, Ph.D., and his colleagues identified a possible way to treat tumors while sparing nearby healthy tissue. Their study uncovers a mechanism by which either the loss of a protein that protects against cancer…

Body’s natural signal carriers can help melanoma spread — ScienceDaily

A new study from Finland sheds fresh light on how melanoma cells interact with other cells via extracellular vesicles they secrete. The researchers found that extracellular vesicles secreted by melanoma cells use the so-called hedgehog signalling pathway to intensify the malignant properties of the cells they are targeting. The discovery can help in the development of better treatment and diagnostics for melanoma. Published in Cellular and Molecular Life Sciences, the study was carried out in collaboration between researchers from the…

A “Natural” Approach to Engineered Materials

As part of Machine Design’s 90th anniversary issue in January, we’ve asked industry experts to take a look at the present and future of technology and how it will impact the design and operation of manufacturing over the next decade. Q: What strategies are emerging to help design engineers address problems? Prof. Markus J. Buehler: Modeling is playing an increasing role, especially looking at multiple scales. I work in materials science and designing materials from the atomic level up is…

Flexible Electronic “Tattoo” is Versatile, Dual-Signal Heart-Monitor Patch

You may have heard of “EMI suppression” or “RF antenna” sheets, which are thin, flexible magnetic shields. Maybe they have been seen laying around the laboratory, typically black or gray in color, but sometimes they’re exotic and silver-looking and appear to have come off the mysterious aircraft that crashed in Roswell, New Mexico in 1947. You may have physically touched them, and/or maybe actually used them, but do we really know how they work or if the best material was…