Abstract: One embodiment provides a mobile wireless network that includes a plurality of wireless nodes and a controller node which manages a weighted network graph for the plurality of wireless nodes. A local wireless node sends a route-request message associated with at least one destination node to the controller node, receives a path to the destination node, and routes a packet to the destination node based on the received path. The path is computed based on the weighted network graph. One embodiment provides a system for routing in a mobile wireless network that comprises a plurality of wireless nodes. The system receives a route-request message associated with at least one destination node from a source node, computes a path between the source node and the destination node based on a weighted network graph for the plurality of wireless nodes, and transmits the computed path to at least the destination node.

Abstract: One embodiment provides a mobile ad-hoc network (MANET). The MANET includes a plurality of mobile nodes and a centralized controller node. The controller node includes a receiving mechanism configured to receive, from a source mobile node, a request for a service, with the request including an identifier associated with the requested service; an identification mechanism configured to identify a destination mobile node that provides the service associated with the identifier; a path-computation mechanism configured to compute a path between the source mobile node and the destination mobile node using a network graph for the mobile nodes; and a path-sending mechanism configured to send the computed path to at least the destination mobile node, which facilitates establishing a route between the source mobile node and the destination mobile node.

Abstract: One embodiment of the present invention provides a computing system. The computing system includes a processor and a computer-readable storage medium. The computer-readable storage medium stores instructions which when executed by the processor cause the processor to perform a method. The method comprises identifying an identifier of an anchor node associated with a name in an update message received from a neighbor node. The anchor node stores a content object identifiable based on the name independent of the anchor node. The method also comprises determining a valid next-hop neighbor in the ICN for the name based on a sequence number of the update message generated by the anchor node and lexicographic order of an identifier of the neighbor node; and determining whether the anchor node is a designated anchor node based on the validity of the next-hop neighbor and a routing metric for the anchor node.

Abstract: One embodiment of the present invention provides a system for resolving a name request in a network comprising a plurality of groups that use different name-resolution schemes. During operation, the system receives, at a first group, the name request; identifies a parent group of the first group, which is a member of the parent group; and in response to failing to resolve the name request within the first group, forwards the name request to the identified parent group.

Abstract: A content-presenting system present digital content for a local user, and facilitates sharing a presentation state for digital content with remote devices. During operation, the system can detect a presentation-controlling event, which alters the presentation of the digital content at the content-presenting device. In response to detecting the presentation-controlling event, the system generates content-control information for the digital content. This content-control information can include a location-independent structured name associated with the digital content, and includes a presentation state for the digital content.

Abstract: A communication protocol includes one or more messages passed between Web routers over a reliable transmission protocol used for inter-Web router communication. These messages include information that allows the Web routers to dynamically update mappings of client addresses or address ranges to information object repository addresses based on client-to-server distance and server load. The mappings are preferably optimal mappings of the client addresses or address ranges to the information object repository addresses and the messages report updated distances from these information object repository addresses to the client addresses or address ranges. For example, the messages may report, for each updated distance, an associated client address or address range and/or an associated anchor address of a Web router co-located with an information object repository that is the subject of the message.

Abstract: An address of an information object repository that should service a client request for an information object is returned in response to a request therefor. The address of the information object repository which is returned is selected according to specified performance metrics regardless of whether or not the information object repository maintains a local copy of the information object that is the client request. In some cases, the address of the information object repository is further selected according to an address of a client making the client request. Further, the address of the information object repository is selected from a number of addresses of information object repositories.

Abstract: A communication protocol includes one or more messages passed between Web routers over a reliable transmission protocol used for inter-Web router communication. These messages include information that allows the Web routers to dynamically update mappings of client addresses or address ranges to information object repository addresses based on client-to-server distance and server load. The mappings are preferably optimal mappings of the client addresses or address ranges to the information object repository addresses and the messages report updated distances from these information object repository addresses to the client addresses or address ranges. For example, the messages may report, for each updated distance, an associated client address or address range and/or an associated anchor address of a Web router co-located with an information object repository that is the subject of the message.

Abstract: A communication protocol includes one or more messages passed between Web routers over a reliable transmission protocol used for inter-Web router communication. These messages include information that allows the Web routers to dynamically update mappings of client addresses or address ranges to information object repository addresses based on client-to-server distance and server load. The mappings are preferably optimal mappings of the client addresses or address ranges to the information object repository addresses and the messages report updated distances from these information object repository addresses to the client addresses or address ranges. For example, the messages may report, for each updated distance, an associated client address or address range and/or an associated anchor address of a Web router co-located with an information object repository that is the subject of the message.

Abstract: A communication system includes devices configured to communicate with each other through a temporal sequence of frames. Each of these frames includes multiple sub-channels and network-context information associated with communication between the devices. For example, network-context information associated with a data packet transmitted by a first device using a first sub-channel during a first frame is included in the first sub-channel. Furthermore, a second device, which communicates with the first device and a third device, arbitrates potential conflicts between the first device and the third device over use of the first sub-channel by providing feedback information to the first device. This feedback information is determined based on the network-context information in multiple frames, which is accumulated by the second device.

Abstract: One embodiment of the present invention provides a system for facilitating re-transmitting packets in a communication network. During operation, the system transmits one or more acknowledgments to a neighbor in a designated time slot. Next, the system receives one or more acknowledgments from the neighbor, where a respective acknowledgment confirms that the data packets in a given past time slot have been processed by the neighbor. The system also receives a processed-through-counter (PTC) from the neighbor. Next, the system identifies a time slot up to the time slot indicated in the PTC and which has not been acknowledged by the neighbor. After identifying the time slot, the system re-transmits previously transmitted packets associated with the identified time slot to the neighbor without using a re-transmit timer.

Abstract: Embodiments of a communication system, a method, and a device for use with the communication system are described. Communication between the devices in the communication system may be enabled by the method. In particular, nodes or devices (henceforth referred to as devices) in a network (such as an ad-hoc network) in the communication system may exchange a dynamic network context via communication with neighboring devices. These devices may use the dynamic network context to determine how network resources are shared during the communication, including performing context-aware packet switching of packets (including data packets) in an information flow.

Abstract: One embodiment of the present invention provides a system that communicates a data packet in a network to a target node. In doing so, the system receives a node identifier for the target node, and determines a first positional label, based in part on the node identifier, for reaching a first anchor node from a root node in the network. The first anchor node stores a second positional label for reaching the target node from the root node in the network, which comprises a number of nodes coupled to the root node in a tree topology. The system then retrieves the second positional label from the first anchor node, and communicates the data packet to the target node based in part on the second positional label.

Abstract: A communication protocol includes one or more messages passed between Web routers over a reliable transmission protocol used for inter-Web router communication. These messages include information that allows the Web routers to dynamically update mappings of client addresses or address ranges to information object repository addresses based on client-to-server distance and server load. The mappings are preferably optimal mappings of the client addresses or address ranges to the information object repository addresses and the messages report updated distances from these information object repository addresses to the client addresses or address ranges. For example, the messages may report, for each updated distance, an associated client address or address range and/or an associated anchor address of a Web router co-located with an information object repository that is the subject of the message.

Abstract: A request for an information object at an address identified by a uniform resource locator (URL) is received; and the URL is mapped to a corresponding anycast address for the information object. Thereafter, the anycast address for the information object may be resolved to a unicast address for the information object, and the information object sent to the client. The request may be received at an information object repository that is topologically closer to the client than any other information object repository. This closest information object repository may be selected according to specified performance metrics, such as: average delay from the selected information object repository to a source of the request, average processing delay at the selected information object repository, reliability of a path from the selected information object repository, available bandwidth in said path, and loads on the selected information object repository.

Abstract: One embodiment of the present invention provides a system that communicates a data packet in a network to a target node. In doing so, the system receives a node identifier for the target node, and determines a first positional label, based in part on the node identifier, for reaching a first anchor node from a root node in the network. The first anchor node stores a second positional label for reaching the target node from the root node in the network, which comprises a number of nodes coupled to the root node in a tree topology. The system then retrieves the second positional label from the first anchor node, and communicates the data packet to the target node based in part on the second positional label.

Abstract: A communication protocol includes one or more messages passed between Web routers over a reliable transmission protocol used for inter-Web router communication. These messages include information that allows the Web routers to dynamically update mappings of client addresses or address ranges to information object repository addresses based on client-to-server distance and server load. The mappings are preferably optimal mappings of the client addresses or address ranges to the information object repository addresses and the messages report updated distances from these information object repository addresses to the client addresses or address ranges. For example, the messages may report, for each updated distance, an associated client address or address range and/or an associated anchor address of a Web router co-located with an information object repository that is the subject of the message.

Abstract: One embodiment of the present invention provides a system for facilitating re-transmitting packets in a communication network. During operation, the system transmits one or more acknowledgments to a neighbor in a designated time slot. Next, the system receives one or more acknowledgments from the neighbor, where a respective acknowledgment confirms that the data packets in a given past time slot have been processed by the neighbor. The system also receives a processed-through-counter (PTC) from the neighbor. Next, the system identifies a time slot up to the time slot indicated in the PTC and which has not been acknowledged by the neighbor. After identifying the time slot, the system re-transmits previously transmitted packets associated with the identified time slot to the neighbor without using a re-transmit timer.

Abstract: An information object repository is configured to resolve a network layer anycast address to a network layer unicast address in response to a request for an information object at the network layer anycast address. The information object repository may be further configured to resolve the network layer anycast address by transmitting a request for the network layer unicast address and awaiting a response thereto, and, in some cases, to return a failure message to a source of the request for the information object if the response to the request for the network layer unicast address is not received within a timeout period. Preferably, the request for the network layer unicast address is a single IP packet that includes the network layer anycast address. Similarly, the request for the network layer unicast address is preferably a single IP packet that includes the network layer unicast address.

Abstract: Embodiments of a communication system, a method, and a device for use with the communication system are described. Communication between the devices in the communication system may be enabled by the method. In particular, nodes or devices (henceforth referred to as devices) in a network (such as an ad-hoc network) in the communication system may exchange a dynamic network context via communication with neighboring devices. These devices may use the dynamic network context to determine how network resources are shared during the communication, including performing context-aware packet switching of packets (including data packets) in an information flow.