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The ability of the block code to correct errors is a function of __________

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The ability of the block code to correct errors is a function of __________

(a) Number of parity bits

(b) Number of information bits

(c) Number of code bits

(d) Code distance

I have been asked this question in a national level competition.

My doubt stems from Block Codes and Finite Fields in chapter Equalization, Diversity and Channel Coding of Wireless/Mobile

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The correct option is (d) Code distance

The explanation: The ability of a block code to correct errors is a function of the code distance. Block codes can be used to improve the performance of communication systems when other means of improvement are impractical.

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