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Consider the following statements regarding the cellular system/network: 1. Cellular systems use open-loop power control and closed-loop power control. 2. For FDMA system, the capacity of a cable is more as compared to the number of frequency channels allocated to it. 3. A cell has L potential subscribers and is able to handle N simultaneous users. If L > N, then the system is referred to a nonblocking. Which of the above statements are not correct?

Consider the following statements regarding the cellular system/network: 1. Cellular systems use open-loop power control and closed-loop power control. 2. For FDMA system, the capacity of a cable is more as compared to the number of frequency channels allocated to it. 3. A cell has L potential subscribers and is able to handle N simultaneous users. If L > N, then the system is referred to a nonblocking. Which of the above statements are not correct? Correct Answer 1 and 3 only

The correct answer is option 2.

Key PointsStatement 1: Cellular systems use open-loop power control and closed-loop power control.

False, Cellular systems use only open-loop power control. In closed-loop power control feedback going to get so it is not used for cellular systems.

Statement 2: For the FDMA system, the capacity of a cable is more as compared to the number of frequency channels allocated to it.

True,  FDMA system, the capacity of a cell is more compared to the number of frequency channels.

Statement 3: A cell has L potential subscribers and is able to handle N simultaneous users. If L > N, then the system is referred to as non-blocking.

False,  A cell has L potential subscribers and is able to handle N simultaneous users. if L>N, then the system is blocking.

Additional Information

  • Open-Loop Power Control, there is no feedback either from mobile to BS or from BS to mobile.
  • Closed-Loop Power Control, feedback is used for adjusting the transmit power level.

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