GRP-based interleaver for IDMA systems over frequency selective channel

An interleave-division multiple-access (IDMA) system supports the presence of multiple users in a cell by resorting to a different interleaver per user. Therefore the choice of the interleaver critically impinges on system performance. A new interleaver structure is proposed for the so-called STBC-OFDM-IDMA [space-time block coding (STBC), orthogonal frequency division multiplexing (OFDM) and IDMA...