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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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -PN sequence can be generated using sequential logic circuits. Explanation: PN sequence is usually generated using sequential logic circuits. When the feedback logic consists of exclusive OR gates, the shift register is called a linear PN sequence generator.
Detailed explanation-2: -With the zero level mapped to a “-1” to make it an antipodal sequences, the autocorrelation of the maximal-length PN sequence is periodic, and its value in one period is-1/M except at one location where it is 1 (M is 2n-1). This sequence can be filtered to generate bandlimited Gaussian-like noise.
Detailed explanation-3: -The original CDMA standard, also known as CDMA One, offers a transmission speed of only up to 14.4 kilobits per second in its single channel form and up to 115 Kbps in an eight-channel form. CDMA2000 and Wideband CDMA (W-CDMA) deliver data many times faster.