computer science

Radwin

Radwin is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Radwin rather than just read about it. In short: Radwin is an Israeli wireless communications manufacturing company, a member of the RAD Group of companies. Radwin produces wireless communications systems used by telecoms carriers, city and town councils, remote communities, ISPs, WISPs, and private networks.

Key takeaways

Radwin belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Radwin to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Radwin from memory before moving on to harder problems.

Reference excerpt

Radwin is an Israeli wireless communications manufacturing company, a member of the RAD Group of companies. Radwin produces wireless communications systems used by telecoms carriers, city and town councils, remote communities, ISPs, WISPs, and private networks. It also creates hardware for transportation applications such as metro systems, bus networks, ferries, airports, and vehicles such as patrol vehicles, manned and unmanned heavy machinery used in mines and ports. The hardware is used for applications, including mobile and IP backhaul, home and enterprise wireless broadband access, private network connectivity, and video surveillance transmission. As part of the Smart City initiative in India by Prime Minister Narendra Modi, Radwin entered a partnership with Avaya in 2016. The company is headquartered in Tel-Aviv, Israel, with regional offices around the world, in Brazil, El Salvador, China, Colombia, Poland, India, Mexico, Peru, Philippines, Singapore, South Africa, Russia, Spain, Thailand, the United Kingdom and United States.

History

Radwin was founded in 1997 by Sharon Sher. During his military service obligation, he was assigned to a R&D unit where he worked on projects involving telecommunication systems and wireless communications. After receiving a degree in mathematics and physics from Hebrew University of Jerusalem, and a master's degree in electronic engineering from Tel Aviv University, he founded Radwin in 1997 as a spin-off of RAD Data Communications. The first products were point-to-point radios.

By 2005, the company had sold its first 10,000 radios, and its products were chosen for one of Asia's largest WiFi backhaul projects, with more than one thousand wireless links. Radwin was selected by Indian Railways for train-to-track connectivity, and in the same year, the company opened an office in India. After the 2004 tsunami, Radwin donated 1,000 wireless broadband units for the reconstruction of Thailand's communications network. They also went on to provide on-site communication systems for rescue teams. In 2006, the company launched its first point to multipoint products. By 2007 Radwin had sold more than 50,000 units, in over 70 countries, and in 2008, that reached 100,000 units in more than 100 countries. Radwin was chosen by the UK Ministry of Defence in 2009 to provide a front line digital communications backbone to replace the Cormorant Network in the War in Afghanistan. Systems were fitted to front-line vehicles, providing reliable broadband communication in non-line-of-sight conditions. In 2010 Radwin was chosen for wireless HD video transmission at NASA launch events taking place at the Kennedy Space Center, Florida. In 2013, the company's FiberinMotion was selected and deployed on the Moscow Metro, providing in-tunnel train-to-wayside broadband wireless communication, delivering on-board high-speed (90 Mbit/s) internet for passengers, and infrastructure for real-time CCTV transmission, passenger information systems and communications-based train control. The company launched a beamforming point-to-multipoint system in 2015, Radwin 5000 Jet, designed to deliver high capacity in challenging high-interference environments and use congested spectrum more efficiently than traditional systems. Radwin's wireless mobility solution is selected by Bangkok for Gold Line (a first completely automated, mass rapid transit (MRT) system in Bangkok).

Awards & notable events WISP President's Choice Award 2004 Named one of the Deloitte Technology Fast 50 in 2008, 2009, 2010, and 2011 Passenger Innovation of the Year 2017, SmartRail Europe Innovation Awards

References

Illustrations

Worked examples

Example 1 — a first encounter with Radwin

Start with the simplest possible case. Write down what Radwin claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Radwin before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Radwin ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Radwin

In research: Radwin appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Radwin in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Radwin is common in secondary-school and first-year university syllabi. It links to neighbouring topics Electronics companies of Israel, Israeli brands, Manufacturing companies based in Tel Aviv, so understanding it makes those chapters shorter.
In everyday life: Look for Radwin outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Radwin” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Radwin in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Radwin means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Radwin out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Radwin in simple terms?

Why does Radwin matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Radwin?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Radwin.