Invited article: A multiple-input and multiple-output long-term evolution precoding based on fast diagonal-weighted Jacket matrices

摘要

In this article, a fast diagonal-weighted Jacket matrix is proposed to have orthogonal architecture. The successive diagonal-weighted Jacket matrix is developed to reduce the computational load while factorizing the large-order diagonal-weighted Jacket matrices into the low-order sparse matrices with fast algorithms. The proposed diagonal-weighted Jacket matrix is then applied to the precoding multiple-input and multiple-output wireless communications because of its diagonal-weighted framework with element-wise inverse characteristics. Based on the properties of the diagonal-weighted Jacket matrix, the proposed diagonal-weighted Jacket matrix can be used as alternative open-loop cyclic delay diversity precoding, which has recently become part of the cellular communications systems. Performance of the diagonal-weighted Jacket matrix-based precoding system is verified for orthogonal space-time block code multiple-input and multiple-output long-term evolution systems.