Random orthogonal frequency division multiplexing
US8254498B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2012 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Feb 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/265
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for receiving a first modulated signal on a first sub-channel, wherein a first transmitter randomly selects the first sub-channel from a plurality of sub-channels and for receiving, at the receiver, a second modulated signal on a second sub-channel, wherein the second sub-channel is orthogonal to the first sub-channel, wherein a second transmitter randomly selects the second sub-channel from the plurality of sub-channels. At least a portion of the first signal overlaps with a portion of the second signal. For each of the plurality of sub-channels, a plurality of symbols are stored in a buffer and a plurality of potential data frames are determined based upon the symbols in the buffer. A signal detection algorithm is applied to the potential data frames to detect the first modulated signal and the second modulated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.