Q. __________ is based on FDMA/FDD.

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Q. In US AMPS, 416 channels are allocated to various operators with 10 kHz guard band and channel between them is 30 kHz. What is the spectrum allocation given to each operator?

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Q. TDMA systems transmit in a continuous way.

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Q. Preamble contains __________

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Q. __________ are utilized to allow synchronization of the receivers between different slots and frames.

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Q. Which of the following is not true for TDMA?

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Q. Because of _______ transmissions in TDMA, the handoff process in __________

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Q. __________ synchronization overhead is required in TDMA due to _______ transmission.

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Q. TDMA allocates a single time per frame to different users.

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Q. ___________ of TDMA system is a measure of the percentage of transmitted data that contains information as opposed to providing overhead for the access scheme.

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Q. A TDMA system uses 25 MHz for the forward link, which is broken into radio channels of 200 kHz. If 8 speech channels are supported on a single radio channel, how many simultaneous users can be accommodated?

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Q. What is the time duration of a bit if data is transmitted at 270.833 kbps in the channel?

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Q. SSMA uses signals which have a transmission bandwidth that is smaller than the minimum required RF bandwidth.

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Q. PN sequence converts _______ signal to ______ signal.

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Q. SSMA is bandwidth efficient when used with a single user.

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Q. ___________ is a digital multiple access system in which carrier frequencies are varied in pseudorandom order.

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Q. If the rate of change of the carrier frequency is greater than the symbol rate, then the system is referred as ___________

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Q. A frequency hopped system does not provide security.

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Q. All users in CDMA system uses __________ carrier frequency.

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Q. ___________ problem occurs when many mobile users share the same channel.

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