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

View solution

Q. In CDMA, symbol duration is ___________ than channel delay spread.

View solution

Q. ____________ is used to improve reception by collecting time delayed versions of the required signal.

View solution

Q. ____________ arises from the fact that the spreading sequences of different users are not orthogonal.

View solution

Q. In ___________ technique, many subscribers attempt to access a single channel in an uncoordinated manner.

View solution

Q. Packet radio uses _________ and __________ signals for perfect feedback.

View solution

Q. Packet radio has high spectral efficiency.

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Pure ALOHA is __________

View solution

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

View solution

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

View solution

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

View solution

Q. CSMA stands for _________

View solution

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

View solution

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

View solution

Q. Discrete packet time technique, PRMA stands for _________

View solution

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

View solution