Topology aware MANET for mobile networks
AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorsReza Ghanadan, John A. Gu, Jessica Y. Hsu, Gregory S. Sadosuk, Phong C. Khuu
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Abstract
Systems and methods provide adaptability in a mobile ad hoc network (MANET), based on an existing protocol, such as adaptive hybrid domain routing (AHDR). The systems and methods are especially suited for fast changing topologies that may change after a reactive route discovery has been completed.
Claims4
A method for discovering a route for a message from a source node in a first domain of the network and destined to a destination node in a second domain of the network, comprising:
- (a) upon receiving a route error message at said source node or at an intermediate node in a predetermined path between said source node and said destination node, transmitting an alternate route discovery (ARDisc) message from one of the source node or intermediate node receiving said message to one of a corresponding domain lead node of the first domain or a corresponding domain lead node of an intermediate domain, wherein the ARDisc message identifies the destination node in said second domain;
- (b) receiving the transmitted ARDisc message at one of the domain lead node of the first domain or the domain lead node of the intermediate domain;
- (c) determining, at one of the domain lead node of the first domain or the intermediate domain lead node of the intermediate domain, if an identifier of the destination node is included in either an associated one hop or two hop routing table;
- (d) if said determining step is satisfied, transmitting an alternative Route Resolution (ARRes) message from one of the domain lead node of the first domain to the source node or the domain lead node of the intermediate domain to the intermediate node, wherein the ARRes message identifies an alternative node in one of the source domain or intermediate domain to allow the source node or intermediate node to link with, to facilitate an alternative routing of the message to the destination node.
A method for discovering a route for data originating from a first node in a first domain of the network and destined to a second node in a second domain of the network, comprising:
- (a) receiving data at a network node situated as an intermediate node in said route discovery between said first node and the second node;
- (b) determining by said intermediate node that a first forwarding node in said route discovery is not available to receive said data, (c) temporarily storing said data at said intermediate node;
- (d) identifying an alternative forwarding node in an alternate route discovery for forwarding said data, wherein said identifying comprises sending of an alternate route discovery message from said intermediate node to a domain lead (DL) node of said first domain and receiving an alternate route resolution message at said first node once said second node is located;
- and (e) forwarding said data to said alternative forwarding node.
Dependencies are inferred from the claim text.