International Business Machines Corporation

Anupam Gupta

Harish Bharti

Rajesh Kumar Saxena

Sandeep Sukhija

A computer-implemented method according to one embodiment includes establishing, for each hop in pathways of a network, a relation between a desired reliability and channel error. Based on the established relations, a maximum number of copies of packets to send from a source in the network to a target in the network is determined. An overhead associated with sending packets from the source to the target in the network is determined for each of the hops, and a first sum of such overheads is also determined. An overhead associated with sending an acknowledgement packet to the source is determined for each of the hops. A second sum is a sum of the overheads associated with sending the acknowledgement packet to the source. In response to a determination that a sum of the first sum and the second sum is less than a predetermined threshold value, the pathways are used.

Determination of operational overhead over a unidirectional network pathway

A core set of nodes of a graph representing a network of devices is identified, a node of the graph representing a device in the network of devices, an edge of the graph representing an ability to transmit data between two devices represented by corresponding nodes of the graph. A device represented by a node more than one hop from any node in the core set of nodes of the graph is removed from the network of devices, the removing resulting in a validated network of devices. Using a number of devices in the validated network of devices, a number of security keys in use in the validated network is validated. A device in the validated network is caused to perform a task.

Security and task performance validation for a cooperative device network

A computer-implemented method according to one embodiment includes defining a network resilience construct of an internet-based network. The network resilience construct includes rankings for nodes of the internet-based network. The nodes of the internet-based network are manipulated to determine an Activated Core Affluence (ACA) of the internet-based network, and the ACA defines a likelihood, for each node, of retaining the ranking for the node upon a first group of the nodes losing connection with the internet-based network. The method further includes determining, based on the ACA, a resilient portion of the network that includes an activated core of the nodes. The nodes of the activated core retain connection with one or more other nodes of the internet-based network upon the first group of the nodes losing connection.

Determining a resilient portion of an internet-based network

A computer-implemented method according to one embodiment includes defining a micro-operative of a first network. The first network has non-obligatory nodes, and the micro-operative includes rankings assigned to each of the nodes of the first network. Activated core covalences (ACCs) are established for the nodes. Each ACC defines a minimum number of neighboring nodes of the node associated with the ACC that, upon the minimum number of neighboring nodes being disconnected from the first network, cause the ranking of the associated node to decrease. An aggregated activated core covalence (A-ACC) is established, and the A-ACC corresponds to a sum of at least some of the ACCs of the nodes. The method further includes determining, based on the A-ACC, whether to perform a communication operation using a path that includes the nodes in the first network.

Growing community of inventors

Noida, India

Anupam Gupta