Block Diagonalization Precoding Technique in Closed-Loop MIMO Systems
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In closed-loop MIMO systems, the block diagonalization precoding technique serves as a critical component primarily aimed at reducing bit error rate (BER). This technique significantly enhances system reliability and performance by effectively suppressing inter-signal interference and improving signal transmission efficiency. The implementation typically involves decomposing the channel matrix using singular value decomposition (SVD) or similar algebraic methods to create orthogonal subspaces for different data streams. Through proper block diagonalization processing of the precoding technique, the system achieves better interference management, leading to substantially improved transmission quality. Consequently, both system performance metrics and user experience are markedly enhanced through optimized signal constellation mapping and reduced cross-talk between antennas.
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