Device and method for efficiently encoding quasi-cyclic ldpc codes

A data encoding device suitable for encoding a plurality of low-density parity-check codes, referred to as LDPC codes, said data encoding device comprising an input interface for receiving data of a data packet to be encoded and an output interface for providing encoded data, said data encoding device comprising:

• a first multiplexer circuit and a second multiplexer circuit, said first multiplexer circuit being connected at an input to the input interface and at an output to the input of said second multiplexer circuit, said second multiplexer circuit being connected at an output to the output interface,
• a first encoding circuit for encoding quasi-cyclic LDPC code, connected at an input to the input interface and at an output to the input of the first multiplexer circuit,
• a second encoding circuit for encoding quasi-cyclic LDPC code, connected at an input to the input interface and at an output to the input of the first multiplexer circuit, said second encoding circuit being arranged in parallel with said first encoding circuit,
• a third encoding circuit for encoding quasi-cyclic LDPC code, connected at an input to the output of the first multiplexer circuit and at an output to the input of the second multiplexer circuit.