Accurate, Focused Research on Law, Technology and Knowledge Discovery Since 2002

Category Archives: Wireless Web

More cell phone data use is negatively affecting Wi-Fi performance, study finds

Citation: “Hidden-nodes in coexisting LAA & Wi-FI: a measurement study of real deployments.”UChicago researchers find competition between networks decreases performance – “If service becomes slow when you’re trying to send a quick email on your smartphone, you might scroll through your network options and discover how many Wi-Fi networks there are. In fact, this plethora of options is itself the problem. These networks are in competition with one another, limiting the speed at which each can operate. University of Chicago researchers have demonstrated how this increased network competition could negatively impact internet service for everyday users. Competition between networks arises when they operate on shared spectrum bands, or frequency ranges for electromagnetic waves. In particular, Wi-Fi utilizes a spectrum that is “unlicensed,” meaning any device or network can utilize this spectrum as long as certain transmission rules mandated by the Federal Communications Commission (FCC) are followed. “The unlicensed spectrum is literally a free-for-all; anybody can use it, within the bounds set by FCC,” explained Monisha Ghosh, associate member in the Department of Computer Science at the University of Chicago and research professor in the Pritzker School of Molecular Engineering. Cellular phone service mostly relies on an entirely separate band of spectra, which providers license from the FCC through spectrum auctions, though that has shifted with the growing demand for cellular data and limited bandwidths. When a cellular provider, such as T-Mobile or AT&T, licenses a spectrum band from the FCC, they reserve its exclusive use. As a result, networks operating on licensed bands experience little interference. This allows providers to establish fast and reliable service, but it comes at a cost…”

How to set up a Wi-Fi extender

PC World: “A Wi-Fi extender is a gadget that sucks in Wi-Fi signal, then spits it back out on the same network name and frequency. Think of it as a radio repeater, because that’s essentially what it is. It’s a relatively easy and inexpensive way to extend your network into those hard-to-reach spots in your… Continue Reading

Pete Recommends – Weekly highlights on cyber security issues, June 27, 2021

Via LLRX – Pete Recommends – Weekly highlights on cyber security issues, June 27, 2021 – Privacy and security issues impact every aspect of our lives – home, work, travel, education, health and medical records – to name but a few. On a weekly basis Pete Weiss highlights articles and information that focus on the… Continue Reading

Alexa, what other devices are listening to me?

CNN Business: “More and more, the devices in your home are listening to you, your friends and family. It sounds Orwellian. It’s billed as convenient. As the Internet of Things proliferates, it creates a world in which everyday devices are interconnected via a web of sensors, apps, software and Wi-Fi. That means you can lower… Continue Reading

NSA – Limiting Location Data Exposure

NSA Cybersecurity Information: “Mobile devices store and share device geolocation data by design. This data is essential to device communications and provides features—such as mapping applications—that users consider indispensable. Mobile devices determine location through any combination of Global Positioning System (GPS) and wireless signals (e.g., cellular, wireless (Wi-Fi®1), or Bluetooth®2 (BT)). Location data can be… Continue Reading

Libraries Strive to Stay ‘Community Living Rooms’ as They Reopen

The New York Times – “Safely lending books is just the beginning. Libraries are figuring out everything from how to remain welcoming spaces to how to respond to changing reader behavior. In pockets of Virginia, Illinois, Missouri and Ohio, there are books sitting in quarantine. They are public library books that have been returned, and… Continue Reading

State of Cybersecurity at Top 100 Global Airports

ImmuniWeb – 97 out of 100 of the world’s largest airports have security risks related to vulnerable web and mobile applications, misconfigured public cloud, Dark Web exposure or code repositories leaks. ” The 2020 annual meeting of the World Economic Forum (WEF) urged the consideration of emerging cybersecurity challenges in the aviation industry, as addressed… Continue Reading

Find the WiFi Password For Almost Any Airport Lounge Using This Free Map

LifeHacker: “Fortunately, we’re at a point where most of the airports in the United States offer free WiFi in some form. Yes, sometimes you have to watch an ad to get there, but it’s there. That said, sometimes you end up an airport that doesn’t have WiFi, or one that has free WiFi that’s restricted… Continue Reading

The Complicated Role of the Modern Public Library

Magazine of the National Endowment for the Humanities: “There aren’t many truly public places left in America. Most of our shared spaces require money or a certain social status to access. Malls exist to sell people things. Museums discourage loiterers. Coffee shops expect patrons to purchase a drink or snack if they want to enjoy the… Continue Reading

How Retail’s Secret Surveillance Tracks Your Every Move

The New York Times: “Imagine you are shopping in your favorite grocery store. As you approach the dairy aisle, you are sent a push notification in your phone: “10 percent off your favorite yogurt! Click here to redeem your coupon.” You considered buying yogurt on your last trip to the store, but you decided against… Continue Reading