Interference-based routing in a wireless mesh network
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsArne Simonsson, Jonas Pettersson
Life of this patent
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Abstract
Route selection through a wireless mesh network between a source node and a destination node is based on minimizing generated interference in order to increase the capacity of the network. An interference energy associated with transmitting a packet over each hop in multiple routes from the source node to the destination node is determined. The interference energy for each hop is combined to generate a combined interference energy for each route. One of the routes is selected based on the combined interference energy determined for each route.
Claims29
A method to select a route for a packet through a wireless mesh network between a source node and a destination node, comprising:
- determining an interference energy associated with transmitting the packet over each node hop in multiple routes from the source node to the destination node;
- combining the interference energy for each hop to produce a combined interference energy for each route;
- and
- selecting one of the routes based on the combined interference energy for each route,
- wherein determining the interference energy includes determining a transmission time associated with transmitting the packet over each hop in multiple routes from the source node to the destination node, and
- wherein the transmission time takes into account a size of the packet, an overhead associated with sending the packet, a bit rate associated with transmitting the packet over the hop that depends on current radio conditions for the hop, and a retransmission probability associated with transmitting over the hop.
Apparatus for selecting a route for a packet through a wireless mesh network of nodes between a source node and a destination node, comprising electronic circuitry configured to:
- determine an interference energy associated with transmitting the packet over each node hop in multiple routes from the source node to the destination node based on a transmission time associated with transmitting the packet over each hop in multiple routes from the source node to the destination node, where the transmission time takes into account a size of the packet, an overhead associated with sending the packet, a bit rate associated with transmitting the packet over the hop that depends on current radio conditions for the hop, and a retransmission probability associated with transmitting over the hop;
- combine the interference energy for each hop to produce a combined interference energy for each route;
- and
- select one of the routes based on the combined interference energy for each route.
Dependencies are inferred from the claim text.