Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2007-04-03
2007-04-03
To, Doris H. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S255000, C370S312000, C370S338000, C455S445000
Reexamination Certificate
active
10298542
ABSTRACT:
A system and method for identifying potential hidden node problems in a multi-hop wireless ad-hoc communication network, such as an 802.11 network. The system and method evaluates the relationship between the neighbors of each respective node to identify nodes of a wireless ad-hoc communication network whose capabilities of receiving data packets can be adversely affected by hidden node problems in order to avoid selecting paths containing those potentially problem nodes for routing data packets. Specifically, for each node, the system and method generates a node metric identifying the relationship between the neighbors of a node. Each node can then transmit its respective metric with its routing advertisement data, so that other nodes can assess the degree of potential hidden node problem that may be experienced by that node, and can choose to avoid using that potentially problem node for routing data packets to other nodes.
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To Doris H.
Tsegaye Saba
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