Exact bit error probabilities and packet error statistics for SVD transmission over time-varying dual-branch MIMO systems obtained by a Markov model

Cross-Layer Combining of Adaptive Modulation and Truncated ARQ in Multichannel Beamforming MIMO Systems

“…Exact expressions for the bit error rate (BER) and the ASE for arbitrary constellation sizes are derived in [18]. However, in that paper only the case of two eigenchannels is investigated, but adaptation of the constellation size was not considered.…”