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Trellis coded modulation scheme

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Trellis coded modulation scheme

(a) Has memory

(b) Is memory-less

(c) Needs more bandwidth

(d) None of the mentioned

This question was addressed to me at a job interview.

My question is from Trellis Coded Modulation in section Modulation and Coding Trade-off of Digital Communications

1 Answer

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Best answer
Correct answer is (a) Has memory

The best explanation: Trellis coded modulation scheme has memory ( a finite state machine) such as the convolutional code.

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