Turbo Codes with Non-Systematic Constituent Codes ∗
Turbo Codes with Non-Systematic Constituent Codes ∗
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具有非系统组成码的 Turbo 码 *
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
D. Costello
中科院分区:
文献类型:
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作者:
O. Takeshita;O. Collins;D. Costello
Turbo codes are usually constructed using systematic recursive convolutional codes (SRCC’s) as constituent codes. In this paper, we introduce a new class of turbo codes that uses nonsystematic recursive convolutional codes (NSRCC’s) as constituent codes. A systematic constituent code then becomes a particular case of this more general class. The use of this larger class of constituent codes enhances the number of possible codes in the search space. We also introduce a modified iterative decoding method for this more general class of turbo codes. The decoding technique is no more complex than the standard iterative decoding algorithm.