Optical wireless communications in the form of “Li-Fi” is a technical alternative to RF-based Wi-Fi with distinct strengths and weaknesses. Part 1 established a context for Li-Fi. This part looks at basic Li-Fi characters as well as hardware and software structure. Q: What are some of the favorable attributes of Li-Fi? A: There are several, […]
Wireless
Sampling oscilloscope upgraded with PAM4 evaluation functions
Tghe Signal Processing Software Option-098 adds upgraded functions for evaluating PAM4 differential electrical signals to the Anritsu BERTWave Sampling Oscilloscope MP2110A. This new option supports standards-compliant measurement of IEEE 802.3 optical-module electrical interfaces to facilitate faster communications at data centers and mobile networks by upgrading evaluation efficiency for 50 to 400G optical modules using PAM4 […]
Is Li-Fi “To Be” or “Not To Be”? Part 1: Context
Optical wireless communications in the form of “Li-Fi” is a technical alternative to RF-based Wi-Fi with distinct strengths and weaknesses. You are undoubtedly familiar with Wi-Fi – a contraction of “Wireless Fidelity”– which has become the de facto standard for wireless connectivity between the Internet or local area networks and PCs, smartphones, countless appliances, gadgets, […]
What is passive intermodulation?
Passive intermodulation (PIM) is a pernicious and destructive phenomenon for cellular network operators. PIM shows up as a set of unwanted signals created by mixing two or more strong RF signals. Mixing generally produces the sum and difference frequencies of the two transmit signals F1 and F2. These signals are F1 + F2 and F1 […]
Software-defined modules speed IIoT projects
Molex announced continued development in driving major advances across its Industry 4.0 and digital manufacturing initiatives. These advances and the introduction of Flexible Automation Modules (FAMs) further extend Molex’s Industrial Automation Solutions (IAS4.0) by empowering supply chain stakeholders to build software-defined machines, robots, and production lines that meet escalating demands for connected, secure, scalable, and efficient operations. […]
Chipset adds LTE to IoT, falls back to 2G
The ALT1255 from Sony reduces cost for IoT connectivity by limiting features found in higher-end parts.
SDR adds flexibility to communications systems
Software-defined radio addresses problems and limitations found in hardware-based radios, such as hardware obsolescence and rigidity.
EMC RF-over-fiber test system now works with LabView
The EMP/EMC ruggedized and shielded RF-over-fiber Sentinel 3 system now has a driver that is compatible with LabVIEW based systems. The driver has been approved by National Instruments and provides a high level of accuracy at±1⁄4 dB across the Sentinel 3 link gain. The Sentinel 3 system basically consists of remote RF sensors that connect […]
What is Wi-Fi HaLow? Players and future
Part 1 focused on HaLow technology; this part will explore who the major players are and discuss the future of the technology. Who are the major HaLow players? A few silicon startups are taking the lead in Wi-Fi HaLow rather than the traditional major chipmakers. They include Morse Micro, Newracom, Methods2Business (an IP provider), and […]
What is Wi-Fi HaLow? Part 1
In the first part of this two-part series, we focus on Wi-Fi HaLow technology. Part two will explore who the major players are and discuss the future of the technology. What is HaLow? In 2017 the wireless networking standard IEEE 802.11ah, also called Wi-Fi HaLow (pronounced “HAY-Low”), was released. HaLow uses the 900 MHz industrial, […]