Coding method and device based on multiple-mode orthogonal frequency division multiplexing with index modulation (MM-OFDM-IM)
US12335084B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2025 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Jan 18, 2045 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/0008
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A coding method based on multiple-mode orthogonal frequency division multiplexing with index modulation (MM-OFDM-IM) is provided. A coded bit sequence is divided into an index-layer sequence and a symbol-layer sequence. According to the index-layer sequence and the symbol-layer sequence, a plurality of constellation modes respectively corresponding to the plurality of subcarriers and which one of a plurality of constellation symbols respectively corresponding to the plurality of constellation modes is carried by each of the plurality of subcarriers are determined. A constellation mode permutation corresponding to each of the plurality of subcarriers is in a symmetrical distribution. The coded bit sequence is converted into the plurality of constellation symbols. The plurality of constellation symbols are respectively loaded to the plurality of subcarriers. A coding device based on MM-OFDM-IM is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.