摘要:
An embodiment of the present invention provides an apparatus, comprising a transceiver capable of dynamic cluster-based sleep/wake scheduling using hierarchical routing, cluster formation, and sleep-wake synchronization. The hierarchical routing may comprise a sink node capable of sending periodic route updates, which may propagate through a network to regular nodes and the route updates may include metrics allowing the regular nodes to select a “best” path to the sink node. The metrics may include hop count or end-to-end reliability and the regular node may track a next hop which optimizes the metric; and packets originating or forwarded by the regular node to the sink node may be sent to the next hop. Further, the route updates may propagate across a backbone network to cluster heads.
摘要:
An embodiment of the present invention provides an apparatus, comprising a transceiver capable of dynamic cluster-based node sleep/wake scheduling by integrating application information such as scheduled data transfers with the sleep/wake scheduling, wherein the nodes may sleep immediately after a scheduled data transmission. Further, the nodes may intelligently and automatically choose to sleep based on the ongoing communication of its neighbors and the apparatus may be part of a wireless sensor network. The nodes may consist of battery-operated computing and sensing devices that collaborate to deliver sensed data and the delivery of the sensed data may be over multiple hops between multiple nodes.
摘要:
An embodiment of the present invention provides an apparatus, comprising a transceiver capable of dynamic cluster-based sleep/wake scheduling using hierarchical routing, cluster formation, and sleep-wake synchronization. The hierarchical routing may comprise a sink node capable of sending periodic route updates, which may propagate through a network to regular nodes and the route updates may include metrics allowing the regular nodes to select a “best” path to the sink node. The metrics may include hop count or end-to-end reliability and the regular node may track a next hop which optimizes the metric; and packets originating or forwarded by the regular node to the sink node may be sent to the next hop. Further, the route updates may propagate across a backbone network to cluster heads.
摘要:
Wireless network communications utilizing routing information. A group of nodes of a wireless network are organized into one or more hierarchical clusters based, at least in part, on routing information corresponding to a path between a selected node and a cluster head node. A sleep state and an awake state are scheduled for each node in the cluster so that each node in the cluster transitions from a sleep state to an awake state at a selected time to receive transmissions from child nodes and to forward data the received data to a parent node and to transition to the sleep state, wherein the nodes of a cluster do not all transition from the sleep state to the awake state at substantially the same time.
摘要:
According to one embodiment, a method is disclosed. The method includes initiating a transfer of data from a source computer system to a receiving computer system, rebooting the source computer system, receiving a negative acknowledge (Nack) at the source computer system from the receiving computer system and resuming the transfer of data based upon the Nack information.
摘要:
A method of operation in a communications device is disclosed. The method of operation includes obtaining interference information associated with a plurality of channels, including age of the interference information, and selecting one of the plurality of channels, based at least in part on the interference information and their age. Communications devices, subsystems, and systems equipped to operate in the above described manner are also disclosed.
摘要:
A method of operation in a communications device is disclosed. The method of operation includes obtaining interference information associated with a plurality of channels, including age of the interference information, and selecting one of the plurality of channels, based at least in part on the interference information and their age. Communications devices, subsystems, and systems equipped to operate in the above described manner are also disclosed.
摘要:
Apparatus and systems, as well as methods and articles, may operate to store a data field in a data file, wherein the data field is associated with one or more data packets received at a node on a first network, and to transfer the data file between the node on the first network and a node on a second network. The data file may be transferred across a wired communications link utilizing a file transfer protocol not associated with a network protocol stack.
摘要:
A manageability engine of a processor based device and a host theft-deterrence agent of the processor based device, jointly implement a theft-deterrence protocol with a theft-deterrence service, remotely disposed from the processor based device, to deter theft of the processor based device. The host theft-deterrence agent is configured to operate in a processor operated application execution environment of the processor based device, and the manageability engine is configured to operate outside the application execution environment.