The study of simulated test for punctured convolutional codes 縮短卷積碼的仿真實驗研究
Punctured convolutional codes 收縮卷積碼
Second , this paper design the simulation scheme of bicm for comparing the performance over fading channel and awgn channel that combine 2 / 3 rate , 4 states punctured convolutional code with 8psk modulation , matching block interleave or random interleave , transform through rayleigh channel or awgn channel and use the way that combine coherent demodulation with viterbi decoding in receiver . design the scheme of bicm _ id that use the iterative decoding technique and the scheme of tcm for compare 為了驗證bicm和bicm _ id在衰落信道和加性高斯白噪聲信道( awgn )下的性能,設計了一個2 / 3碼率, 4狀態的鑿孔卷積碼經過塊交織或隨機交織,與8psk調制相結合,在rayleigh信道下或awgn信道下傳輸,接收端采用相干解調與維特比譯碼相結合的bicm方案,在接收端引入迭代反饋譯碼的bicm _ id方案,以及與之相比較的tcm方案。