Matrix analysis and applied linear algebra
Matrix analysis and applied linear algebra
Space-Time Block Coding for Wireless Communications
Space-Time Block Coding for Wireless Communications
Introduction to Space-Time Wireless Communications
Introduction to Space-Time Wireless Communications
Limited feedback unitary precoding for orthogonal space-time block codes
IEEE Transactions on Signal Processing
Space-time block codes from orthogonal designs
IEEE Transactions on Information Theory
Grassmannian beamforming for multiple-input multiple-output wireless systems
IEEE Transactions on Information Theory
Limited feedback unitary precoding for spatial multiplexing systems
IEEE Transactions on Information Theory
What is the value of limited feedback for MIMO channels?
IEEE Communications Magazine
Hi-index | 0.00 |
This letter proposes a novel optimized nonunitary linear precoding design for orthogonal space-time block codes (OSTBCs). We dig out the transmission potentials by the analysis from eigen-space point of view according to the unique structure of OSTBCs. The proposed precoding form is proved to be theoretically optimized. Compared with the classical unitary Grassmannian codebook design, in the sense of restriction on the time average power of transmit signal, the proposed nonunitary codebook further improves the overall performance of practical systems. The new constraint on codebook size to guarantee full diversity order is given and proved. The advantages of our proposed design are verified in the numerical simulations.