the divisor in a cyclic code is normally called the

The k-bit message forms _ distinct messages which is referred to as k-tuples.Ĭlarification: The k bit messages for 2k distinct message sequences which are referred to as k-tuples or sequence of k digits.ġ2. It allows for more efficient encoding and decoding procedures.ġ1. The rate of a block code is the ration ofĬlarification: The rate of a block code is the ratio between its message length and the block length, R=k/n.Ĭlarification: Linear codes are used in forward error correction. Block length is the _ in the code word.Ĭlarification: The block length n is the number of elements in the code word.ĩ. Dividing the overall parity bit with perfect go-lay codeĬlarification: Extended go-lay code is formed by adding overall parity bit with the perfect bit known as the golay code.Ĩ. Ex-oaring overall parity bit with perfect go-lay codeĭ. Adding overall parity bit to perfect go-lay codeī. If the syndrome is a non zero vector then the received code has errors.Ĭlarification: Block codes are generated using generator matrix and cyclic codes are generated using generator polynomial.Ī. The received code contains an error if the syndrome vector isĬlarification: If the syndrome is an all zero vector then the received code-word is a valid code. In the dividing circuit, the parity polynomial is obtained by theĬlarification: The parity polynomial is the remainder after diving by the generator polynomial it is available in the register after n shifts through the n-k stage feedback registers.ĥ.

Thus this feedback shift register is also called as dividing circuit.Ĥ. The feedback shift register circuit is called asĬlarification: The cyclic shift of a code-word polynomial and encoding involves division of one polynomial by another. It is designed using feedback shift registers.Ĭlarification: A cyclic code can be generated using generator polynomial and block codes can be generated using generator matrix.ģ. Digital Communications Multiple Choice Questions on “Cyclic codes and linear block codes”.Ĭlarification: The cyclic codes are a subclass of linear codes.

The divisor in a cyclic code is normally called the