function L_A = sova(Ly,G,Lu,ind_dec) % Copyright: Yufei Wu, 1998, MPRG lab, Virginia Tech for academic use% This implements Soft Output Viterbi Algorithm in trace back mode % Input: Ly : Scaled received bits Ly=0.5*L_c*y=(2*a*rate*Eb/N0)*y% G : Code generator for the RSC code in binary matrix form% Lu : Extrinsic information from the previous decoder.% ind_dec: Index of decoder=1/2% (assumed to be ter
Function l_all = SOVA (rec_s, G, l_a, ind_dec) % This function implememts soft output Viterbi Algorithm in trace back mode % input: % rec_s: scaled encoded bits. rec_s (K) = 0.5 * l_c (k) * Y (k) % l_c = 4 * a * ES/No, reliability value of the channel % Y: received bits % G: encoder Generator Matrix in binary form, G (1, :) for feedback, g (2, :) for feedforward % l_a: a priori information about the info. bi Ts. extrinsic info. from the previous % com
checkWith. You may assume that S consists of only the letters L and R. (n String for n.OUTPUTFor each test case output the case number and Yes or No denoting whether the string is inThe final string as substring.1 Problem DDecoding the HallwaySAMPLE INPUT SAMPLE OUTPUT21 R4 LRRLL Case 1: NoCase 2: Yes2Pro
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What is in the hallway?
I'm glad to answer your questions!Hall, hallway US English corridor, channel.In the hallway is in the hallway.Hope to help you.Please enter the decoding
output bit of the interleaved device in the protocol:
The values of F1 and F2 are related to K value, and the relationship is table5.1.3-3 in protocol TS36.212.
Turbo decoding
Decoding mainly includes iterative decoding, decoding algorithm (maximum posteriori probability algorithm map, modified map algorithm max-log-map, soft output Viterbi algorithm Sova, etc.) research.
Standard Turbo Decoder structure
The iterative decoding scheme of turbo code,
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