Sparse Kronecker-Product Coding for Unsourced Multiple Access
Sparse Kronecker-Product Coding for Unsourced Multiple Access
In this letter, a sparse Kronecker-product (SKP) coding scheme is proposed for unsourced multiple access. Specifically, the data of each active user is encoded as the Kronecker product of two component codewords with one being sparse and the other being forward-error-correction (FEC) coded. At the receiver, an iterative decoding algorithm …