On the Concatenated Code Construction for Slotted Non-Orthogonal Multiple Access

A novel code construction applied to an especial class of non-orthogonal multiple access system over vector-disjunctive channel in which users send some information vectors of bits with particular length is regarded by us. We suggest specific encoding and decoding schemes suitable for these transmission cases. Coding algorithm is represented by concatenated code construction with a combination of interleaved BCH code and finite geometry (Steiner triple systems). We show some simulation results for frame error rate (FER) and for relative sum-rate of our structure in the case of varied number of active users and various coding schemes. These simulation results demonstrate a good performance in non-orthogonal multiple access system thanks to using specific code construction.