Mimo communication - Study guides, Class notes & Summaries

CWNA Flashcards Questions and Answers 2024 6 dB rule Doubling the distance between a transmitter and receiver will decrease the received signal by 6 dB. Halving the distance between a transmitter and receiver will increase the received signal by 6 dB fade margin A level of desired signal above what is required antenna "Provides two functions in a communication system. When connected to the transmitter, it collects the AC signal that it receives fr...

CWNA Assessment Test Questions and Answers scored A +At which layers of the OSI model does 802.11 technology operate? • Data-link & Physical layers EXPLANATION: The IEEE 802.11-2012 standard defines communication mechanisms at only the Physical layer and MAC sublayer of the Data-Link layer of the OSI model. Which Wi-Fi Alliance certification defines the mechanism for conserving battery life that is critical for handheld devices such as bar code scanners and VoWiFi phones? • WMM-...

The reference text covers emerging wireless communication technologies, such as massive MIMO, mmWave, and visible light communication. It will be an ideal reference text for senior undergraduate, graduate students, and professionals in the fields of electrical engineering, and electronics and communication engineering.

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Star topology - ANSWER-Most common network topology today - connects all networking devices to a central switch or hub Ring topology - ANSWER-Each node connects to exactly two other nodes to deliver packets according to its designated turn or the availability of the token. Bus topology - ANSWER-Lays out all connecting nodes in a single run that acts as the common backbone connection for all connected devices Mesh topology - ANSWER-Connects a group of clients or nodes directly to each ot...

What is a logarithm? Correct answer: A logarithm is an exponent based mathematical representation of a numerical value. What logarithmic base is used in digital communications? Correct answer: Two How do you find a log2 value on a calculator that only has log10 functionality? (Hint: what is the formula?) Correct answer: log2(a) = [log10(a) / log10(2)] What is the definition of a decibel? Correct answer: a = 10lob(b), where a is the decibel value and b is the decimal value Correct answer...