Mimo signal processing method involving a rank-adaptive matching of the transmission rate

摘要: The invention relates to a bidirectional signal processing method for the parallel transmission of digital transmitted data streams in multiple input-multiple output (MIMO) system. Prior art methods generate high bit error rates mostly singular channels. For this reason, inventive rank-adaptive provides that number nd active subchannels (DS1...DSnd) are varied according actual channel behavior (CI) order effect robust even radio channels based on transmit-side and receive-side knowledge modification vector (S DS1...DSnd) by linear matrix multiplication (MVM) while introducing factor η limiting maximum transmit power. power is then only distributed currently activated so no remains unused. Another optimization occurs when selecting modulation encoding (ASTC, ASTD). During optimal rank-adaptation water-filling principle, another allocated each subchannel. accordingly selected stream. suboptimal inversion all have same whereby enabling be modulated encoded common source.