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This paper investigates the design of practical non-binary irregular repeat-accumulate (IRA) codes for reliable physical-layer network coding. In the scheme, a same random-coset IRA code over Galois field GF(q) is employed at the two users. The relay computes the network coded message sequence directly from the superimposed signal using an iterative belief propagation algorithm. We explore the symmetry...
We propose a new irregular repeat-accumulate (IRA) coded physical-layer network coding (PNC) scheme for Gaussian two-way relay channels (TWRCs). In the scheme, a same random-coset IRA code over GF(q) is employed at the two users, which directly maps the q-ary message sequences into coded q-PAM symbol sequences. The relay computes the network coded message sequence directly from the superimposed signal...
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