2. Table of Content
■ What is Convolution Code
■ Example of Generating
a Convolutional Code
■ Application of Convolution Code
■ Advantages of Convolutional Codes
■ Significance of Convolutional Codes
■ Difference Between Block Code
And Convolution Code
■ What Topics We Particularly Focus
on
■ Why You Need Information Theory
Assignment Help
■ Our Relevant Services
■ Why Choose Us
■ How you Avail our Information
Theory Assignment Help
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3. What is Convolution Code
■ Convolutional coding is an extensively used coding method in information theory
■ It is not based on blocks of bits
■ Here, the output code bits are determined by logic operations
■ The logic operation works on the present bit in a stream and a small number of
previous bits
4. Example of Generating a Convolutional
Code
■ The formula of code-rate is Rc = k/n = 1/2
■ The input string is flowed from right to left into the encoder
■ As per the given formula, any particular binary convolutional encoder is associated
with a binary input sets
■ It is also based on a set of binary outputs
■ It has various set of states
5. Application of Convolution Code
■ It is a memory-based system
■ It means the output bit is dependent on the current bit, and the previous bit stream
stored in the memory
■ The puncturing system uses conventional rate one by two encoders as well as
decoders
■ The main applications of convolution coding are in deep space applications and
wireless communication systems
6. Advantages of Convolutional Codes
■ It is easy to build
■ It does better than linear codes
■ It is mostly used in higher error probability rates & noisy channels
■ Information bits are spread along the sequence
■ Lastly, these codes have memory
7. Significance of Convolutional Codes
■ With the help of time-invariant trellis, the sliding type of the convolutional codes
helps trellis decoding
■ This decoding technique provides convolutional systems to be maximum-likelihood
soft-decision
■ It is decoded with reasonable complexity to get the best result
■ Convolutional codes are frequently defined as constant
8. Difference Between Block Code And
Convolution Code
■ Information bits are followed by parity bits in block codes
■ Information bits are spread along the sequence in convolution codes
■ Block codes are memoryless
■ Convolution codes have memory
■ Block codes use big code words in comparison to convolution codes
■ Convolution codes use small code words in comparison to block codes
■ Both are achieving the same quality
9. What Topics We Particularly Focus on
■ Mutual information
■ Channel capacity
■ Error exponents
■ Relative entropy
■ Sub-fields are source coding, algorithmic complexity theory,
algorithmic information theory, and information-theoretic security
10. Why You Need Information Theory
Assignment Help
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