Encoder, decoder, and encoding method
AssigneePanasonic Corporation
InventorsYutaka Murakami, Hisao Koga, Nobutaka Kodama
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Abstract
An encoder and decoder using LDPC-CC are provided, which avoid lowering the transmission efficiency of information while not deteriorating error correction performance, even at termination; and an associated encoding method is provided. A termination sequence length determining unit determines the sequence length of a transmitted termination sequence added to the end of an information sequence, according to the information length (information size) and encoding rate of the information sequence. A parity calculation unit carries out LDPC-CC coding on the information sequence and the known-information sequence necessary for generating a termination sequence of the determined termination sequence length, and calculates a parity sequence.
Claims3
An encoder that performs low density parity check convolutional code coding, comprising:
- a determining section that determines a sequence length of a termination sequence transmitted by being added at a rear end of an information sequence according to an information length and coding rate of the information sequence;
- and
- a computing section that applies low density parity check convolutional code coding to the information sequence and a known information sequence necessary to generate the termination sequence of the determined sequence length, and computes a parity sequence.
An encoding method comprising:
- determining a sequence length of a termination sequence transmitted by being added at a rear end of an information sequence according to an information length and coding rate of the information sequence;
- and
- applying low density parity check convolutional code coding to the information sequence and a known information sequence necessary to generate the termination sequence of the determined sequence length and computing a parity sequence.
Dependencies are inferred from the claim text.