Adaptive channel selection by wireless nodes for improved operating range
US8085805B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2008 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | May 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Improved message range in a wireless network is achieved by each node performing an energy/noise scan to determine a receiving channel having the lowest noise and/or interference, e.g., best reception conditions, relative to the other channels available in the wireless network. Each node may thereafter scan available channels periodically to adjust its optimal receiving channel if the noise/interference environment changes on its present receiving channel, e.g., noise/interference on another channel is less then the noise on the present receiving channel. When a receiving channel is changed by a node, the wireless node may broadcast this information to notify its neighbor nodes of the change in its receiving channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.