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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m
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3m
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2m
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2m-1
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Detailed explanation-1: -The period of a PN sequence produced by a linear m stage shift register cannot exceed symbols. Explanation: There are exactly 2m-1 non-zero states for an m stage feedback shift register. Thus, the period of a PN sequence produced by a linear m stage shift register cannot exceed 2m-1. 7.
Detailed explanation-2: -18. Which of the following is not a property of spread spectrum techniques? Explanation: Resistance to multipath fading is one of the fundamental reasons for considering spread spectrum systems for wireless communication.
Detailed explanation-3: -DSSS system spreads the baseband signal by the baseband pulses with a pseudo noise sequence. Clarification: A direct sequence spread spectrum (DS-SS) system spreads the baseband data by directly multiplying the baseband data pulses with a pseudo noise sequence.