For block codes _____ is necessary.
A. Phase synchronization
B. Frequency synchronization
C. Frame synchronization
D. None of the mentioned
Answer:A
For block codes _____ is necessary.
A. Phase synchronization B. Frequency synchronization C. Frame synchronization D. None of the mentioned
Explanation: Frame synchronization is necessary when the information is organized in blocks or messages of some uniform number of symbols. Thus block code needs frame synchronization.