In a GSM system, 8 channels can co-exist in 200 kHz bandwidth using TDMA. A GSM based cellular operator is allocated 5 MHz bandwidth. Assuming a frequency reuse factor of 5 1 ,
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In decoding of cyclic code, which among the following is also regarded as 'Syndrome Polynomial'?
A. Generator Polynomial
B. Received code word Polynomial
C. Quotient Polynomial
D. Remainder Polynomial
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Which among the following error detecting technique is supposed to be parity bit associated with character code?
A. LRC
B. VRC
C. Both A and B
D. None of the above
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When X and Y are statistically independent, then I (x, y) is
A. 1
B. 0
C. Ln 2
D. Cannot be determined
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Let U and V be two independent and identically distributed random variables such that P ( U = + 1 ) = P ( U = − 1 ) = 2 1 .
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While representing the convolutional code by (n, k, m), what does 'm' signify or represent in it?
A. Coded bits
B. Message bits
C. Memory order
D. All of the above
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Which coding terminology deals with the inverse operation of assigned words of second language corresponding to the words in the first language?
A. Enciphering
B. Deciphering
C. Codeword
D. Codebook
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When probability of error during transmission is 0.5, it indicates that
A. Channel is very noisy
B. No information is received
C. Channel is very noisy & No information is received
D. None of the mentioned
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H.261 is
A. Compression of audio
B. De-compression of audio
C. Video Compression standard
D. None of the above
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Which among the following is/are the essential condition/s for a good error control coding technique?
A. Faster coding & decoding methods
B. Better error correcting capability
C. Maximum transfer of information in bits/sec
D. All of the above
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A source produces 4 symbols with probability 2 1 , 4 1 , 8 1 8 1
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In Minimum Distance Separable (MDS) codes, the minimum distance is one more than the number of . . . . . . . .
A. Information bits
B. Symbol bits
C. Parity check bits
D. None of the above
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B-frame is also known as
A. Unidirectional
B. B-De-compression technique
C. B-compression technique
D. Bidirectional frame
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Which approach plays a cardinal role in supporting the results obtained regarding the information capacity theorem?
A. Line Packing
B. Volume Packing
C. Sphere Packing
D. All of the above
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A source generates three symbols with probabilities 0.25, 0.25, 0.50 at a rate of 3000 symbols per second. Assuming independent generation of symbols, the most efficient source encoder would have average bit rate is
A. 6000 bits/sec
B. 4500 bits/sec
C. 3000 bits/sec
D. 1500 bits/sec
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For designing of (4, 1) cyclic repetition code, what would be the order of the generator polynomial g(x)?
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Which among the below stated logical circuits are present in encoder and decoder used for the implementation of cyclic codes?
A. 1 and 2
B. 3 and 4
C. 1 and 3
D. 2 and 4
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The distance between each symbol in given sequence and reference sequence is known as . . . . . . . .
A. Euclidean Distance
B. Distance between sequences
C. Manmattan Distance
D. Hamming Distance
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Which buffer size is required by the interleaved codes at the transmitter for the accumulation of λ code words?
A. Small
B. Medium
C. Large
D. All of the above
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According to Shannon's second theorem, it is not feasible to transmit information over the channel with . . . . . . . . error probability, although by using any coding technique.
A. Small
B. Large
C. Stable
D. Unpredictable
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