Question

Which among the following is not a design methodology in the implementation of cross-layer design?

a.

Exchange of information among several layers during run time

b.

Storage of information in different storage structures

c.

Construction of mutual database with easy access for each layer in the protocol stack

d.

Construction of channel models to estimate the propagation of a signal in the channel environment

Posted under Cognitive Radio

Answer: (d).Construction of channel models to estimate the propagation of a signal in the channel environment Explanation:Cross-layer design requires the characteristic parameters of each layer to be made available to other layers of the protocol stack during run time. In order to achieve this, different degree of abstraction is required. This requires the development of new data structures such as constructing squares for storing information.

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Q. Which among the following is not a design methodology in the implementation of cross-layer design?
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