Interference-based routing in a wireless network
First Claim
1. A method of selecting a route for a message in a wireless network comprising a plurality of nodes (A to F), the method comprising determining (50) for each of at least some of the nodes an indication of an amount of interference experienced by that node and selecting (50) a route having one or more nodes and which provides compliance of the indication of the amount of interference experienced by a subset of the nodes with a predetermined criterion.
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Abstract
A wireless network comprising nodes uses measurement or prediction of interference at the nodes to select a route for a message through the network that results in acceptable amounts of interference. The interference may be caused to the message by other traffic carried by the network or by other networks, in which case the amount of interference to the nodes on the selected route must be acceptable, or may be caused to the other traffic by the message being routed, in which case, the amount of interference to the nodes outside of the selected route must be acceptable.
27 Citations
13 Claims
- 1. A method of selecting a route for a message in a wireless network comprising a plurality of nodes (A to F), the method comprising determining (50) for each of at least some of the nodes an indication of an amount of interference experienced by that node and selecting (50) a route having one or more nodes and which provides compliance of the indication of the amount of interference experienced by a subset of the nodes with a predetermined criterion.
- 6. A primary node for use in a wireless network comprising a plurality of nodes, the primary node comprising a transceiver (10, 20) for transmitting and receiving messages, processing means (50) for encoding messages prior to transmission and for decoding received messages, storage means (60) for storing an indication of an amount of interference experienced by each of at least some of the nodes, and selection means (50) for selecting for a message prior to transmission a route having one or nodes and which provides compliance of the indication of the amount of interference experienced by a subset of the nodes with a predetermined criterion.
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11. A secondary node for use in a wireless network comprising a plurality of nodes, the secondary node comprising a transceiver (10, 20) for transmitting and receiving messages, processing means (50) for encoding messages prior to transmission and for decoding received messages, measurement means (24) for measuring an amount of interference and transmitter means (10) for transmitting an indication of the amount of interference.
Specification