Patent · US Active

System and method for enhancing near vertical incidence skywave (“NVIS”) communication using space-time coding

US7885354B2 · kind B2 · utility

12Cited by

29References

26Claims

0Family size

Assignee

Rearden, LLC · US

Inventors

Stephen G. Perlman · Palo Alto, US
Tim Cotter · Sunnyvale, US
Mike Cheponis · Fremont, US
Frank M. Caimi · Vero Beach, US

Key dates

Filing date	Apr 2, 2004
Grant date	Feb 8, 2011
Priority date	—
Expiry date	Nov 6, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/0618
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A system and method are described in which space-time coding techniques are used to transmit and receive multiple data streams within a near vertical incidence skywave (“NVIS”) communication system. Within the NVIS communication system, multiple independent data streams may be transmitted from a transmitting station at a high radiation angle, approaching or reaching 90 degrees. The data streams are reflected off of the ionosphere of the earth and received by one or more receiving stations. In one embodiment, the space-time coding techniques are multiple-input multiple-output (“MIMO”) signal communication techniques.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.