Space-time coding techniques with bit-interleaved coded modulations for MIMO block-fading channels

摘要

The space-time bit-interleaved coded modulation (ST-BICM) is an efficienttechnique to obtain high diversity and coding gain on a block-fading MIMOchannel. Its maximum-likelihood (ML) performance is computed under idealinterleaving conditions, which enables a global optimization taking intoaccount channel coding. Thanks to a diversity upperbound derived from theSingleton bound, an appropriate choice of the time dimension of the space-timecoding is possible, which maximizes diversity while minimizing complexity.Based on the analysis, an optimized interleaver and a set of linear precoders,called dispersive nucleo algebraic (DNA) precoders are proposed. The proposedprecoders have good performance with respect to the state of the art and existfor any number of transmit antennas and any time dimension. With turbo codes,they exhibit a frame error rate which does not increase with frame length.