PyQdeck LogoPyQdeckSubjectsSyllabusBlog
Back to the 2025 paper

Module 6: Information Coding and Decoding

20252m

Error detection in block coding is based on
(i) Modulation index
(ii) Parity checking and syndrome
(iii) Quantization noise
(iv) Clock synchronization

Search GoogleAsk AI
Worked SolutionAI Assisted

Answer

Correct Option: (ii) Parity checking and syndrome

Explanation

Block coding (n,k)(n,k): r=n−kr=n-k parity bits, generator GG, parity HH, syndrome s=yHTs=yH^T. Error detection via syndrome non-zero. Not modulation index, quantization noise, clock sync.

Final Answer

Parity/syndrome → Option (ii).

Similar questions

Computer NetworksDescribe how the two-dimensional parity check is able to detect errors. Consider '1100101100110000110100101101' as the data that is to be sent over the network.20177mPrinciples of Communication Engineering Explain the need for error detection and correction in digital communication systems.20257mPrinciples of Communication Engineering A (7,4) Hamming code is used for error correction. If the received codeword is 1011010, determine the original data and correct the error.202414mComputer NetworksExplain the principle of error detection using Cyclic Redundancy Check (CRC). Given: - Dataword: 1101011011 - Generator polynomial: G(x) = x^4 + x + 1 Determine the transmitted codeword using binary modulo-2 division. Verify how the receiver detects errors if no bit is altered.20267m
PreviousCyclic codes are represented using (i) Frequency response (ii) Generator polynomial (iii) Trellis diagram (iv) Fourier seriesNextThe minimum Hamming distance required for single-bit error correction is (i) 1 (ii) 2 (iii) 3 (iv) 4
Free AppAndroid App

Coursify Android App

Generate AI courses, take quick quizzes between classes, and master complex engineering concepts on the go.

Install Coursify