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What is the disadvantage of guard channel?

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What is the disadvantage of guard channel?

(a) Efficient utilization of spectrum

(b) Cross talk

(c) Near far effect

(d) Reduce total carried traffic

The question was asked in unit test.

Origin of the question is Handoff Strategies in portion The Cellular Concept – System Design Fundamentals of Wireless/Mobile

1 Answer

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Best answer
Correct answer is (d) Reduce total carried traffic

Explanation: Guard channel is a concept for handling priority in handoff. Here, a fraction of the total available channels in a cell is reserved exclusively for handoff requests from ongoing calls. This method has the disadvantage of reducing the total carried traffic, as fewer channels are allocated to originating calls.

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