Q101
Open questionConsider a binary memoryless channel characterized by the transition probability diagram shown in the figure. The channel is
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ECE · all questionsInformation Theory And Coding
Information Theory And Coding
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Q102
Open questionWhile decoding the cyclic code, if the received code word is similar as transmitted code word, then r(x) mod g(x) is equal to . . . . . . . .
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Q103
Open questionFor a received sequence of 6 bits, which decoding mechanism deals with the selection of best correlated sequence especially by correlating the received sequence and all permissible sequences?
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Q104
Open questionBinary Huffman coding is a
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Q105
Open questionIn discrete memoryless source, the current letter produced by a source is statistically independent of . . . . . . . .
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Q106
Open questionThe capacity of a binary symmetric channel, given H(P) is binary entropy function is
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Q107
Open questionWhen the channel is noisy, producing a conditional probability of error p = 0.5; the channel capacity and entropy function would be, respectively.
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Q108
Open questionA source generates three symbol m0, m1, m2 with probabilities 0.5, 0.25, 0.5, then find entropy?
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Q109
Open questionShannon's law relates which of the following?
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Q110
Open questionA source produce 26 symbols with equal probability. What is the average information produced by this source?
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Q111
Open questionA discrete memory less source has two symbols x1 and x2 with probabilities p(x1) and p(x2) respectively, then the entropy of the source
H(X) is
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Q112
Open questionCapacity of each channel in FDMA is given by
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Q113
Open questionThe channel capacity under the Gaussian noise environment for a discrete memory less channel with a bandwidth of 4 MHz and SNR of 31 is.
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Q114
Open questionConveniently information I(x) is expressed as:
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Q115
Open questionMatch List-I with List-II and select the correct answer using the options given below the lists:
| List-I | List-II |
| a. Entropy coding | 1. McMillan's Rule |
| b. Channel capacity | 2. Redundancy |
| c. Minimum length code | 3. Shannon Fano |
| d. Equivocation | 4. Shannon law |
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Q116
Open questionFind the channel capacity (in MHz), if the channel bandwidth is 20MHz having signal to noise ratio 1023dB?
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Q117
Open questionConsider a noisy binary channel with bit error probability pe = 5 × 10-5. Assume 10000 bits are being transmitted over such a channel. The probability that there will be 2 or less number of bits in error is
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Q118
Open questionA communication channel with AWGN operating at a signal to noise ratio SNR >> 1 and bandwidth B has capacity C1. If the SNR is doubled keeping B constant, the resulting capacity C2 is given by
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Q119
Open questionAn event has two possible outcomes with probability The rate of information with 16 outcomes per second is:
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Q120
Open questionAn analog signal is band limited to 4 kHz. It is sampled at the Nyquist rate and samples are quantized into 4 levels. The quantization levels have probabilities and The information rate of the source is:
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