Iterative decoding device of RS (Reed-solomon) cascading grid modulation code and decoding method thereof
An iterative decoding and modulation code technology, applied in the field of wireless communication, can solve problems such as excessive hardware overhead, low complexity, and inflexibility, and achieve the effects of low complexity, high decoding gain, and hardware resource saving
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[0047] Example
[0048] Such as figure 1 As shown, the iterative decoding device for RS cascaded trellis modulation codes involved in this embodiment includes: a quantization unit, a ping-pong soft value read-write buffer unit, a soft input Viterbi decoder, a state recording unit, a deinterleaver, and RS translation The encoder, the decoding state processing unit, the interleaver and the soft value modification unit, wherein: the quantization unit is connected to the channel output to transmit the symbol amplitude sequence, and the ping-pong soft value read-write buffer unit is connected to the quantization unit to transmit the symbol soft value sequence. The soft value read / write buffer unit is connected with the state recording unit to transmit the read enable signal, the ping-pong soft value read / write buffer unit is connected to the input end of the soft input Viterbi decoder to transmit the symbol soft value sequence, the ping-pong soft value read / write unit and the soft The...
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