Double factor correction turbo decoding method based on simulated annealing algorithm

A double factor correction Turbo decoding method based on a simulated annealing algorithm, comprising:

• S1:
• setting an initial bit error rate Pe0 and an initial solution x0(sf1, sf2) of correction factors, sf1 being a first correction factor, and sf2 being a second correction factor;
• S2:
• randomly selecting a new solution of the correction factors from a proximal subset of a current solution of the correction factors, and calculating a new bit error rate Penew after correcting a Turbo decoding algorithm based on the new solution of the correction factors;
• S3:
• determining whether the new bit error rate is smaller than a bit error rate of a previous decoding;
• in response to the new bit error rate being smaller than the bit error rate of the previous decoding, receiving the new solution of the correction factors;
• and in response to the new bit error rate being not smaller than the bit error rate of the previous decoding, calculating a reception probability based on a difference between the new bit error rate and the bit error rate of the previous decoding, and receiving the new solution of the correction factors based on the reception probability;
• S4:
• decreasing the initial bit error rate Pe0 at a preset rate, determining whether a termination condition is satisfied, and performing S5 if the termination condition is satisfied, or performing S2 if the termination condition is not satisfied;
• and
• S5:
• outputting the current solution of the correction factors as an optimal solution.