computer science

IEEE 802.11bb

IEEE 802.11bb 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 IEEE 802.11bb rather than just read about it. In short: IEEE 802.11bb is a line-of-sight light-based wireless networking standard that is part of the 802.11 suite of standards, which defines an interoperable communications protocol for Li-Fi devices. Its proponents state that it will allow for very high speed communication that is faster than Wi-Fi.

Key takeaways

IEEE 802.11bb 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 IEEE 802.11bb to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of IEEE 802.11bb from memory before moving on to harder problems.

Reference excerpt

IEEE 802.11bb is a line-of-sight light-based wireless networking standard that is part of the 802.11 suite of standards, which defines an interoperable communications protocol for Li-Fi devices. Its proponents state that it will allow for very high speed communication that is faster than Wi-Fi. Li-Fi is intended to provide better bandwidth compared to microwave. To achieve faster speeds the standard will likely need to adopt some of the technologies used with optical fiber based networking. Multiple channels can reach extremely high speeds. The 802.11bb standard describes the use of light in the near-infrared 800 to 1000 nm waveband to implement data rates between 10 Mbit/s and 9.6 Gbit/s, with interoperability between devices with different capabilities. Development of 802.11bb was carried out by the IEEE 802.11 Light Communications Task Group. Companies participating in the standardization effort included pureLiFi and Fraunhofer HHI.

See also ITU-T G.9991, an ITU standard for line of sight optical networking approved in 2019 IrDA, an early low-speed infrared communication protocol

References

External links 802.11 Light Communications Task Group website

Illustrations

Worked examples

Example 1 — a first encounter with IEEE 802.11bb

Start with the simplest possible case. Write down what IEEE 802.11bb 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 IEEE 802.11bb 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 IEEE 802.11bb 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 IEEE 802.11bb

In research: IEEE 802.11bb 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 IEEE 802.11bb 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: IEEE 802.11bb is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer network stubs, IEEE 802.11, Networking standards, so understanding it makes those chapters shorter.
In everyday life: Look for IEEE 802.11bb 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.

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How to study IEEE 802.11bb in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what IEEE 802.11bb 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 IEEE 802.11bb out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is IEEE 802.11bb in simple terms?

Why does IEEE 802.11bb 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 IEEE 802.11bb?

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 IEEE 802.11bb.