Coding-assisted MIMO joint detection and decoding
US6757337B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Sep 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03611
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
To address the need for a receiver that provides good performance during poor channel conditions yet reduces the computational complexity of existing ML receivers, a method and apparatus for MIMO joint detection and decoding is provided herein. In accordance with the preferred embodiment of the present invention, a low-complexity linear filter method is first utilized by the receiver. However, a higher-complexity non-linear method is utilized when the performance of the linear method is not adequate, for example, during poor channel conditions. In order to reduce the complexity of the non-linear decoding method, the distances to a much smaller set of candidate constellation points are computed than with prior-art decoding methods. This is made possible by the fact that some bits decoded with higher confidence utilizing the output of a linear filter method can help the decoding of the other bits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.