Detection of spatially multiplexed signals for over-determined MIMO systems
US10135503B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jan 19, 2017 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0258
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Method and apparatus of obtaining better detection performance by improving matrix condition for an M×N over-determined MIMO system are disclosed. The condition of a matrix to be inverted for solving various detection problems is improved by reordering equations of the original MIMO system, resulting in a reordered channel matrix and reordered received signal vector so that the top N×N sub-matrix has the largest determinant among all N×N sub-matrices of the reordered channel matrix. The disclosed method may be used to obtain a more accurate estimate of the transmit data bits.
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