Question

Which of the following expression can be used to compute processing demand providedif, Ps, Pbs, Pbb and Pmo stands for IF, source, bitstream, baseband, and management overhead processing demand respectively?

(a) P=Pif+Ps+Pbs+Pbb+Pmo

(b) P=Pbb+N*(Pif+Pmo)+Ps+Pbs

(c) P=Pif+N*(Ps+Pbs+Pbb)+Pmo

(d) P=Pif+(Pbs*Pbs*Pbb)+Pmo

I got this question during an online exam.

My question is taken from Performance Management Tradeoffs in portion Technology Tradeoffs in Software Defined Radio of Cognitive Radio

Answer 1

Correct answer is (c) P=Pif+N*(Ps+Pbs+Pbb)+Pmo

To explain: P=Pif+N*(Ps+Pbs+Pbb)+Pmo is the expression used to compute processing demand. Processing demand depends on a first-order approximation on the signal bandwidths. It is also influenced by the intricacy of the operations in the IF, baseband, bitstream, and source segments.