Q. Packet radio has high spectral efficiency.

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Q. ___________ is defined as average number of messages successfully transmitted per unit time in packet radio multiple access technique.

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Q. What is the time period during which the packets are susceptible to collisions with transmissions from other users?

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Q. For a PR multiple access technique, packet transmissions occur with __________ distribution.

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Q. If λ is mean arrival rate and τ is the packet duration, then traffic occupancy of a packet radio network is equal to _________

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Q. Pure ALOHA is __________

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Q. For pure ALOHA protocol, the vulnerable period is ___________ the packet duration.

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Q. The vulnerable period of slotted ALOHA is _________ packet duration.

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Q. In slotted ALOHA, time is divided into different length of time slots.

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Q. CSMA stands for _________

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Q. __________ is the time required for a terminal to sense whether or not the channel is idle.

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Q. Which of the following is based on time division multiplexing?

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Q. Discrete packet time technique, PRMA stands for _________

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Q. ____________ is the maximum number of channels that can be provided in a fixed frequency band.

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Q. Which of the following measures spectrum efficiency of a wireless system?

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Q. If D is the distance between co-channel cells and R be the cell radius, co-channel reuse ratio is given by __________

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Q. __________ is the interference at a base station receiver that comes from the subscriber units in the surrounding cells.

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Q. In practice, TDMA systems improve capacity by ____________ compared to analog cellular systems.

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Q. __________ allows subscribers to monitor neighbouring base stations.

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Q. Time division multiple access introduces ACA, which stands for ________

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