Channel selection in ad hoc wireless network
AssigneeBritish Telecommunications public limited company
InventorsRichard E Tateson, Fabrice T. P. Saffre, Jane E Tateson
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Abstract
The present invention relates to channel selection in ad hoc wireless networks. The present invention provides a method of selecting a channel for a node in an ad hoc network of nodes, the method comprising: increasing a preference score for a channel (E) in response to receiving a stimulatory control message (hoot x) associated with the channel from another node; decreasing the preference score for the channel (A) in response to receiving an inhibitory control message (hoot y) associated with the channel from another node; selecting a channel dependent on the preference score for the channel.
Claims15
A method of selecting a channel for a node in an ad hoc network of nodes, the method comprising:
- increasing a preference score for a channel in response to receiving an anonymous stimulatory control message associated with the channel from another node;
- decreasing the preference score for the channel in response to receiving an anonymous inhibitory control message associated with the channel from another node;
- and
- selecting a channel dependent on the preference score for the channel.
A node for communicating wirelessly in an ad hoc network of nodes, said node comprising:
- a number of transceivers each for communicating with another node using a respective channel;
- and
- a channel selector for selecting a number of channels, said channel selector configured to:
- increase a preference score for a channel in response to receiving an anonymous stimulatory control message associated with the channel from another node;
- decrease the preference score for the channel in response to receiving an anonymous inhibitory control message associated with the channel from another node;
- and
- allocate a selected channel to a said transceiver dependent on the preference score for the channel.
A method of selecting a channel for a node in an ad hoc network of nodes, the method comprising:
- increasing a preference score for a channel in response to receiving a stimulatory control message associated with the channel from another node;
- decreasing the preference score for the channel in response to receiving an inhibitory control message associated with the channel from another node;
- and
- selecting a channel dependent on the preference score for the channel;
- wherein:
- receiving a stimulatory control message comprises receiving a response control message associated with said channel from another node within a predetermined period following transmission of a challenge control message associated with said channel;
- and
- receiving an inhibitory control message comprises receiving a response control message associated with said channel from another node in the absence of first transmitting a challenge control message (hoot x) associated with said channel.
Dependencies are inferred from the claim text.