Method of modulation and demodulation of a digital signal, in a frequency band affected by flat fading, associated modulator and demodulator
US7697616B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Dec 15, 2003 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Apr 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of modulating a digital signal of width L in frequency on a given useful frequency band is described The digital signal is separated into N blocks bn (1≦n≦N). The given useful frequency band is split into N contiguous parts Pn. Channels Cn, of width 1n in frequency, lying within an associated part Pn, are defined. The channels Cn are separated, a distributing of each block of digital signals bn over the associated channel Cn.
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