Question

Which of the following is the first step in establishing acceptable aliasing power?

(a) Establish the relation between CIR and BER

(b) Fix BER threshold

(c) Convert BER threshold to CIR threshold

(d) Apply the instantaneous dynamic range requirement of ADC

I got this question in exam.

My doubt stems from ADC Tradeoffs in division Technology Tradeoffs in Software Defined Radio of Cognitive Radio

Answer 1

The correct answer is:

(b) Fix BER threshold

In establishing acceptable aliasing power, the first step is to fix the Bit Error Rate (BER) threshold. The BER threshold is important because it provides a criterion for determining the acceptable level of aliasing and signal distortion in a communication system. Once the BER threshold is fixed, further steps can be taken to translate it into other parameters like Carrier-to-Interference Ratio (CIR) or dynamic range requirements for the Analog-to-Digital Converter (ADC).