[amp_mcq option1=”Less” option2=”More” option3=”Equal” option4=”Unpredictable” correct=”option1″]
The correct answer is A. Less.
In digital communication, the code rate is the ratio of the number of information bits to the number of total bits transmitted. A lower code rate means that there are more redundant bits, which are bits that are not necessary to convey the information. These redundant bits are used to improve the reliability of the transmission.
For example, if a code rate of 1/2 is used, then for every two bits of information, there will be one bit of redundancy. This means that the transmission will be twice as long, but it will also be twice as reliable.
The choice of code rate depends on the application. For example, if the application requires very high reliability, then a lower code rate will be used. However, if the application is not as sensitive to errors, then a higher code rate can be used to reduce the transmission time.
Here is a brief explanation of each option:
- Option A: Less. This is the correct answer. As the code rate decreases, the number of redundant bits decreases.
- Option B: More. This is the incorrect answer. As the code rate decreases, the number of redundant bits decreases.
- Option C: Equal. This is the incorrect answer. The number of redundant bits is not equal to the code rate.
- Option D: Unpredictable. This is the incorrect answer. The number of redundant bits is not unpredictable. It is a function of the code rate.