Method and device of frequency domain equalization
US8300746B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Aug 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03605
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of a frequency-domain equalization to jointly suppress inter-symbol interference (ISI) and data-like co-channel interference (CCI) includes receiving a transmit signal over a channel, generating a vector by sampling and converting the transmit signal to a frequency domain signal; generating an equalized vector by multiplying an equalization matrix to the vector generated by converting; generating an estimate of data vector by inverse converting the equalized vector; and recovering data included in the transmit signal based on the estimate of data vector, wherein the equalization matrix is generated by approximating a frequency domain correlation matrix. Significant computational complexity is reduced than the LMMSE equalization while resulting in almost no performance degradation compared to the LMMSE equalization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.