Space-time doppler coding schemes for time-selective wireless communication channels
US7280604B2 · kind B2 · utility
33Cited by
4References
38Claims
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Key dates
| Filing date | Apr 21, 2003 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Apr 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/42
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Space-time Doppler (STDO) coding techniques are describe for time-selective channels. In particular, a STDO coded system is capable of achieving a maximum Doppler diversity for time-selective frequency-flat channels. As demonstrated herein, this maximum diversity may be represented as Q+1, where Q is the number of bases in a generalized Basis Expansion Model (BEM) for time-frequency selective channels. In addition, linearly precoded transmissions are described to collect this maximum diversity gain.
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