Method and apparatus for battery-aware dynamic bandwidth allocation for wireless sensor networks
US7969928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2007 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Nov 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus that allocates bandwidth among wireless sensor nodes in a wireless sensor network (WSN) is disclosed. The method may include allocating transmission time slots for a plurality of wireless sensor nodes based on at least one channel quality metric, determining battery levels in each of the plurality of wireless sensor nodes and average battery level of all of the plurality of wireless sensor nodes, determining differences in battery level between each of the plurality of wireless sensor nodes and average battery level of all of the plurality of wireless sensor nodes, wherein if any such difference is above a predetermined threshold, increasing the transmission time slots allocation of wireless sensor nodes having higher battery levels relative to other wireless sensor nodes in the plurality of wireless sensor nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.