3 citations · 3 across the 10 of their papers we have counts for
10 papers
A Further Note on an Innovations Approach to Viterbi Decoding of Convolutional Codes
Masato Tajima
In this paper, we show that the soft-decision input to the main decoder in an SST Viterbi decoder is regarded as the innovation as well from the viewpoint of mutual information and…
Corrections to "An Innovations Approach to Viterbi Decoding of Convolutional Codes"
Masato Tajima
We correct errors in Section III-B of the above-titled paper. The corrections are related to the joint distribution of the inputs to the main decoder which corresponds to a branch…
Non-Linear Estimation of Convolutionally Encoded Sequences
Masato Tajima
Suppose that a convolutionally encoded sequence is transmitted symbol by symbol over an AWGN channel using BPSK modulation. In this case, pairs of the signal (i.e., code symbol) an…
Characteristic Matrices and Trellis Reduction for Tail-Biting Convolutional Codes
Masato Tajima
Basic properties of a characteristic matrix for a tail-biting convolutional code are investigated. A tail-biting convolutional code can be regarded as a linear block code. Since th…
Algebraic Construction of Tail-Biting Trellises for Linear Block Codes
Masato Tajima
In this paper, we present an algebraic construction of tail-biting trellises. The proposed method is based on the state space expressions, i.e., the state space is the image of the…
Reduction of Error-Trellises for Tail-Biting Convolutional Codes Using Shifted Error-Subsequences
Masato Tajima, Koji Okino, Tatsuto Murayama
In this paper, we discuss the reduction of error-trellises for tail-biting convolutional codes. In the case where some column of a parity-check matrix has a monomial factor (with i…