Iterative maximum likelihood channel estimation and signal detection for OFDM systems
US7027519B2 · kind B2 · utility
21Cited by
8References
16Claims
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Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Oct 29, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0236
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In orthogonal frequency division multiplexing systems, iterative maximum likelihood channel estimation and signal detection is preformed. The channel estimation gives the maximum likelihood estimates of time domain channel parameters. A cost function is defined. An iterative process estimates a joint channel impulse response and a transmitted signal that minimize the cost function, and thus solves the channel estimation and signal detection problem jointly without having specific knowledge of the channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.