Channel prediction system and channel prediction method for OFDM wireless communication system
US11121890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2020 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Nov 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/261
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A channel prediction system and a channel prediction method for an OFDM wireless communication system include a standard echo state network and a two-layer adaptive elastic network. In the method, with respect to each subcarrier of a pilot OFDM symbol, an echo state network is trained by using frequency domain channel information of each subcarrier obtained by channel estimation. The trained echo state network may realize short-term prediction of the frequency domain channel information. To overcome a likely ill-conditioned solution of an output weight in an echo state network, the output weight in the echo state network is estimated by using a two-layer adaptive elastic network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.