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Mobile Communications Fundamentals Quiz

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Questions and Answers

What is mobile communication?

Sending data over a wireless network (correct)

Sending data over a satellite network

Sending data over a wired network

Sending data over a fiber optic network

What are the signals transmitted from the base station (BS) to the mobile termed as?

Forward link or downlink (correct)

Reverse link or uplink

Bi-directional link

Cross link

How can the capacity of a network be increased?

By using fewer spectrally efficient modulation techniques

By increasing the power of the transmitters

By employing more spectrally efficient modulation and multiple access techniques (correct)

By reducing the number of channels

What is the equation to determine the frequency re-use distance for a given cell cluster size in a hexagonal cell structure?

$D = Rrac{ ext{sqrt}(3N)}{2}$ Signup and view all the answers

What must be done to reduce co-channel interference in cellular systems?

Physically separate co-channel cells by a minimum distance Signup and view all the answers

What is the equation to determine the frequency re-use distance (D) for a given cell cluster size (N) and cell radius (R) in a hexagonal cell structure?

$D = Rrac{ ext{sqrt}(3N)}{2}$ Signup and view all the answers

What are signals transmitted from the base station (BS) to the mobile termed as in cellular systems?

Forward link or downlink Signup and view all the answers

What is the term used for reducing co-channel interference by physically separating co-channel cells by a minimum distance in cellular systems?

Frequency re-use distance Signup and view all the answers

What is the condition for achieving no two adjacent cells using the same frequency in a hexagonal cell structure?

Cluster cells so that no two adjacent cells are using the same frequency Signup and view all the answers

How can the capacity of a network be increased in cellular systems?

By employing more spectrally efficient modulation and multiple access techniques Signup and view all the answers