WorksheetsWireless Communication Networks Quiz
Total questions: 15
Worksheet time: 8mins
Which component of a wireless transmitter is responsible for modulating the baseband signal onto a carrier wave?
Antenna
Mixer
Modulator
Amplifier
What is duplexing in wireless communication?
The process of converting analog signals to digital signals.
The process of transmitting and receiving data simultaneously on the same frequency.
The process of encoding data for secure transmission.
The process of amplifying weak signals for long-distance transmission.
Which band requires a license from regulatory authorities for wireless communication?
Unlicensed bands
ISM bands
Industrial bands
Licensed bands
Capacity of a channel can be increased by
Increasing channel bandwidth
Increasing signal power
Increasing channel bandwidth &signal power
None of the mentioned
Which statistical model is commonly used to describe the variability of received signal strength in a multipath environment?
Binomial distribution model
Gaussian distribution model
Poisson distribution model
Rayleigh fading model
Which type of multiplexing allocates a fixed portion of bandwidth to each communication channel?
Fixed Assignment Multiplexing
Statistical Multiplexing
Time-Division Multiplexing
Frequency-Division Multiplexing
Which process is commonly used to model the arrival of packets in Aloha-based systems?
Exponential distribution
Gaussian distribution
Poisson process
Bernoulli process
A station sends a frame whenever one is available and the sender waits for an arbitrary period of time before retransmitting the frame if there is a collision and it is destroyed. This type of multiple access protocol named as
Aloha
Slotted Aloha
Pure Aloha
Adaptive Aloha
What is the purpose of the RTS-CTS mechanism in Wi-Fi networks?
To reserve the channel for a specific duration
To detect collisions before transmission
To synchronize transmission among nodes
To prevent collisions caused by hidden terminals
In a cellular system, what defines an interference-limited system?
Limited number of cell sites
Limited bandwidth availability
Limited power transmission
Limited interference from neighboring cells
Which type of system is characterized by the limitation of signal coverage within a cell boundary?
Interference-limited system
Frequency-reuse system
Coverage-limited system
Spatial-reuse system
If D is the distance between co-channel cells and R be the cell radius, co-channel reuse ratio is given by __________
D*R
D2/R
D/R
D/R2
Which of the following does not come under the teleservices of GSM?
Standard mobile telephony
Mobile originated traffic
Packet switched traffic
Base originated traffic
In UMTS architecture, what is the function of the Node B?
To manage subscriber information
To route data between different networks
To provide a connection between the mobile device and the network
To perform encryption and decryption of voice signals
In wireless communication, what does the term 'handover' refer to?
The process of switching from one frequency to another
The transfer of an active call from one cell to another
The method of increasing signal strength
The procedure for connecting to a new network
