Consider a discrete memoryless channel and assume that H(x) is the amount of information per symbol at the input of the channel; H(y) is the amount of information per symbol at the output of the channel; H(x|y) is the amount of uncertainty remaining on x knowing y; and I(x;y) is the information transmission. Which of the following does not define the channel capacity of a discrete memoryless channel?

Consider a discrete memoryless channel and assume that H(x) is the amount of information per symbol at the input of the channel; H(y) is the amount of information per symbol at the output of the channel; H(x|y) is the amount of uncertainty remaining on x knowing y; and I(x;y) is the information transmission. Which of the following does not define the channel capacity of a discrete memoryless channel? 

(A) max I(x;y)

 p(x)

(B) max [(H(y) – H(y|x))]

 p(x)

(C) max [(H(x) – H(x|y))]

 p(x)

(D) max H(x|y)

 p(x)


by

1 Answer

Answer :

(D) max H(x|y) 

 p(x)
by

Related questions

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Description : Consider a window bounded by the lines : x = 0; y= 0; x = 5 and y = 3. The line segment joining (–1, 0) and (4, 5), if clipped against this window will connect the points (A) (0, 1) and (2, 3) (B) (0, 1) and (3, 3) (C) (0, 1) and (4, 3) (D) (0, 1) and (3, 2)

Last Answer : (A) (0, 1) and (2, 3)

Let us consider that the original point is (x,y) and new transformed point is (x’,y’). Further, Shx and Shy are shearing factors in x and y directions. If we perform the y-direction shear relative to x=xref then the transformed point is given by ............

Description : Let us consider that the original point is (x,y) and new transformed point is (x’,y’). Further, Shx and Shy are shearing factors in x and y directions. If we perform the y-direction shear relative to x=xref then the transformed point is given by ............ 

Last Answer : (C) x’ = x y’ = Shy(x - xref) + y