COMPUTER NETWORKS AND COMMUNICATIONS
WIRELESS COMMUNICATION TECHNOLOGIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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false
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true
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Either A or B
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None of the above
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Detailed explanation-1: -A simple link budget equation looks like this: Received power (dBm) = transmitted power (dBm) + gains (dB) − losses (dB)
Detailed explanation-2: -A link budget is a formal way of calculating the expected received signal to noise ratio. This is something designers generally want to know to make design decisions like what antenna gain and how much transmitter power is needed. This effects the hardware cost and is important in satisfying the license conditions etc.
Detailed explanation-3: -Explanation: The link analysis and its output, the link budget consists of calculations and tabulations of useful signal power and interfering noise power at the receiver.
Detailed explanation-4: -Link margin is defined as the additional SNR (in dB) that imposes on top of a given SNR design point to guarantee the link design would meet a given data integrity requirement, which is typically expressed in bit-error-rate (BER) or frame-error-rate (FER).