METHOD FOR OFDM AND OFDMA CHANNEL ESTIMATION
| dc.citation.patentcountry | USA | zh_TW |
| dc.citation.patentnumber | 20090232230 | zh_TW |
| dc.contributor.author | HUNG, Kun-Chien | en_US |
| dc.contributor.author | Lin, David W. | en_US |
| dc.date.accessioned | 2014-12-16T06:15:45Z | |
| dc.date.available | 2014-12-16T06:15:45Z | |
| dc.date.issued | 2009-09-17 | en_US |
| dc.description.abstract | This invention discloses a method for OFDM and OFDMA channel estimation via phase-rotated polynomial interpolation and extrapolation (inter/extra-polation). For complexity reason, polynomial inter/extra-polation is an often considered method for channel estimation in orthogonal frequency-division multiplexing (OFDM) and orthogonal frequency-division multiple access (OFDMA) systems, in which the simplest choice is linear inter/extra-polation. But the performance of this method depends on the accuracy of symbol timing estimation as well as the channel delay spread. The invention mitigates the problem by adding a linear phase factor to polynomial inter/extra-polation, which corresponds to adding a delay (also called delay shift) in the time domain. | zh_TW |
| dc.identifier.govdoc | H04L027/28 | zh_TW |
| dc.identifier.govdoc | H04B007/208 | zh_TW |
| dc.identifier.uri | https://ir.lib.nycu.edu.tw/handle/11536/105485 | |
| dc.language.iso | zh_TW | en_US |
| dc.title | METHOD FOR OFDM AND OFDMA CHANNEL ESTIMATION | zh_TW |
| dc.type | Patents | en_US |