Adaptive inverse control system can improve the performance of turbo decoding,and modeling turbo decoder is one of the most important technologies. A neural network model for the inverse model of turbo decoding is pro...Adaptive inverse control system can improve the performance of turbo decoding,and modeling turbo decoder is one of the most important technologies. A neural network model for the inverse model of turbo decoding is proposed in this paper. Compared with linear filter with its revi-sion,the general relationship between the input and output of the inverse model of turbo decoding system can be established exactly by Nonlinear Auto-Regressive eXogeneous input (NARX) filter. Combined with linear inverse system,it has simpler structure and costs less computation,thus can satisfy the demand of real-time turbo decoding. Simulation results show that neural network in-verse control system can improve the performance of turbo decoding further than other linear con-trol system.展开更多
Definition. Let M=〈X,Y,S,δ,λ〉and M’=〈Y,X,S’,δ’,λ〉be two finite automata.For any s in S and s’ in S’, if for any x0,x1,… in X there exist x-τ,…, x-1 in X such that λ’（s’, λ（s, x0x1…））=xτ…x1x...Definition. Let M=〈X,Y,S,δ,λ〉and M’=〈Y,X,S’,δ’,λ〉be two finite automata.For any s in S and s’ in S’, if for any x0,x1,… in X there exist x-τ,…, x-1 in X such that λ’（s’, λ（s, x0x1…））=xτ…x1x0x1… holds, and if for any l≥n≥0, and x0,…,x1 in X and any y’0,…,Y’n-1, y0, y1,…,y1 in Y, y0…y1=λ（s, x0…x1）展开更多
A Lattice triangular expansion matrix is presented based on the classical Hadamard matrices, which is defined over the fields of finite characteristic. Also, the modular Lattice and Pentagon expansion matrices are str...A Lattice triangular expansion matrix is presented based on the classical Hadamard matrices, which is defined over the fields of finite characteristic. Also, the modular Lattice and Pentagon expansion matrices are structured from triangular 7x7 matrix, each of the expansion matrices are modular the sides of the shape p. The issue for the existence (necessary conditions) of odd and even order matrices of that kind is addressed. The modular Lattice code is highly efficient since it requires only additions, multiplications by constant modulo p. The modular 6 Lattice triangular expanded constellation is even possible efficiency to gain advantage from the channel selection and maximum likelihood (ML) decoding in the interference Lattice alignment (IA) system.展开更多
文摘Adaptive inverse control system can improve the performance of turbo decoding,and modeling turbo decoder is one of the most important technologies. A neural network model for the inverse model of turbo decoding is proposed in this paper. Compared with linear filter with its revi-sion,the general relationship between the input and output of the inverse model of turbo decoding system can be established exactly by Nonlinear Auto-Regressive eXogeneous input (NARX) filter. Combined with linear inverse system,it has simpler structure and costs less computation,thus can satisfy the demand of real-time turbo decoding. Simulation results show that neural network in-verse control system can improve the performance of turbo decoding further than other linear con-trol system.
文摘Definition. Let M=〈X,Y,S,δ,λ〉and M’=〈Y,X,S’,δ’,λ〉be two finite automata.For any s in S and s’ in S’, if for any x0,x1,… in X there exist x-τ,…, x-1 in X such that λ’（s’, λ（s, x0x1…））=xτ…x1x0x1… holds, and if for any l≥n≥0, and x0,…,x1 in X and any y’0,…,Y’n-1, y0, y1,…,y1 in Y, y0…y1=λ（s, x0…x1）
文摘A Lattice triangular expansion matrix is presented based on the classical Hadamard matrices, which is defined over the fields of finite characteristic. Also, the modular Lattice and Pentagon expansion matrices are structured from triangular 7x7 matrix, each of the expansion matrices are modular the sides of the shape p. The issue for the existence (necessary conditions) of odd and even order matrices of that kind is addressed. The modular Lattice code is highly efficient since it requires only additions, multiplications by constant modulo p. The modular 6 Lattice triangular expanded constellation is even possible efficiency to gain advantage from the channel selection and maximum likelihood (ML) decoding in the interference Lattice alignment (IA) system.
