Title:
METHOD AND DEVICE FOR CORRECTING ERROR
Document Type and Number:
Japanese Patent JP3874605
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an error correcting method and an error correcting device capable of applying soft decision Viterbi decoding in which Euclidean distance is made to be metric to a punctured code subjected to multivalued quadrature amplitude modulation.
SOLUTION: In these error correcting method and error correcting device, a convolutional code processing part 3 performs convolutional coding of a transmission information sequence, a punctured code processing part 4 performs punctured coding of the transmission information sequence, a multivalued modulation processing part 2 receives a signal subjected to multivalued modulation, a multivalued demodulation processing part 5 demodulates the signal, and an improvement Viterbi decoding processing part 8 uses the demodulated code sequence for Viterbi decoding with the demodulated code sequence as it is without inserting a dummy bit.
Inventors:
Koichi Kawakami
Application Number:
JP2000359117A
Publication Date:
January 31, 2007
Filing Date:
November 27, 2000
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G06F11/10; H03M13/23; H03M13/25; H03M13/41; H04L1/00; H04L27/00; (IPC1-7): H03M13/23; G06F11/10; H03M13/25; H03M13/41; H04L1/00; H04L27/00
Domestic Patent References:
| JP2000353363A | ||||
| JP5183448A |
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida