PHYSICAL LAYER AND TRANSMISSION MEDIA
BANDWIDTH UTILIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The processing gain of FH systems is given by ratio of ____
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Hopping bandwidth and hopping period
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Instantaneous bandwidth and hopping duration
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3 dB bandwidth and bit rate
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Total hopping bandwidth and instantaneous bandwidth
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Explanation:
Detailed explanation-1: -Explanation: The processing gain of frequency hopping (FH) systems is given by Bss/B. Here, Bss and B denote the total hopping bandwidth and instantaneous bandwidth respectively.
Detailed explanation-2: -The processing gain of a spread-spectrum (SS) system is generally defined as the ratio between the transmission bandwidth and data bandwidth, and is a measure of its interference rejection capability.
Detailed explanation-3: -The frequency hopping spread spectrum (FHSS) technique uses M different carrier frequencies that are modulated by the source signal. At one moment, the signal modulates one carrier frequency; at the next moment, the signal modulates another carrier frequency.
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