Abstract: A sensor device may use battery power to operate a sensor node by taking sensor readings and transferring data onto or out of a set of queues. A radio frequency identification (RFID) tag may be used to wirelessly communicate data into and/or out of the sensor device without using power from the battery. The sensor node may be placed in a low-power mode without respect whether the RFID tag is communicating. In some embodiments, the sensor device may be used as a store-and-forward node for other devices by placing data received from one RFID reader into the set of queues and later transmitting the data from the set of queues in response to a poll from another RFID reader.

Abstract: An embodiment selects one or more radio frequency parameters that may be optimal for a wireless network of access points and clients. Various methods, systems, and/or computer-readable media may implement operational embodiments.

Abstract: A sensor device may use battery power to operate a sensor node by taking sensor readings and transferring data into or out of a set of queues. A radio frequency identification (RFID) tag may be used to wirelessly communicate data into and/or out of the sensor device without using power from the battery. The sensor node may be placed in a low-power mode without respect whether the RFID tag is communicating. In some embodiments, the sensor device may be used as a store-and-forward node for other devices by placing data received from one RFID reader into the set of queues and later transmitting the data from the set of queues in response to a poll from another RFID reader.

Abstract: 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.

Abstract: An embodiment of the present invention provides an apparatus, comprising a node capable of cooperating in a distributed communication wireless network and wherein the cooperation is based upon predetermined fairness criteria. In an embodiment of the present invention the predetermined fairness criteria may include algorithms that account for battery life and quality of service (QoS). The wireless network may be a centralized network or de-centralized network.

Abstract: Embodiments of methods and apparatus for providing an integrated multi-hop routing and cooperative diversity system are generally described herein. Other embodiments may be described and claimed.

Abstract: Briefly, in accordance with one embodiment of the invention, a method effecting communications in a wireless communication network including mobile stations and a base station comprising: (a) in no particular order: (1) operating a first mobile to effect a first evaluation of a first communication link between the first mobile and a second mobile; (2) operating the first mobile to effect a second evaluation of a second communication link between the base station and the first mobile; and (3) operating the base station to effect a third evaluation of a third communication link between the base station and the second mobile; (b) collecting information relating to the evaluations at the first mobile; and (c) operating the first mobile to employ the evaluations to select at least one selected communication link from among the communication links to establish a communication route between the first mobile and the second mobile.

Abstract: Embodiments of methods and apparatus for providing a dynamic on-demand routing protocol are generally described herein. Other embodiments may be described and claimed.

Abstract: 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.

Abstract: 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.

Abstract: Embodiments of methods and apparatus for identifying a distance-vector route associated with a wireless mesh network are generally described herein. Other embodiments may be described and claimed.

Abstract: Nodes of a multichannel mesh network generate channel-metric matrices for routing packets to destinations based on a bottleneck channel identified for the source-destination pair. The identification of bottleneck channels increases the diversity among the different communication channels used along a route. This link-state routing approach may allow better paths to be found.

Abstract: A wireless mesh network router comprises at least one transceiver to receive a packet over a wireless communication channel and path selection circuitry. The packet identifies a source node and a destination node in a multichannel mesh network. The path selection circuitry combines a channel-metric matrix associated with the packet's source node and a channel-metric matrix associated with the packet's destination node to determine a bottleneck channel for the source-destination pair. The next-hop node and associated transmission channel may be selected from the destination node matrix based on the bottleneck channel.

Abstract: Embodiments of methods and apparatus for providing a transparent data-link bridge associated with a wireless mesh network are generally described herein. Other embodiments may be described and claimed.

Abstract: 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.

Abstract: A network of devices that use radio frequency identification (RFID) technology for communications may establish an ad hoc configuration for the network by identifying which RFID tags are shared by which RFID readers, and by creating and maintaining a distributed database of those configurations to facilitate the routing of communications between any tow nodes in the network.

Abstract: Briefly, in accordance with one embodiment of the invention, a radio frequency identification tag system includes a lock tag to secure an item or an area, and one or more key tags associated with the lock tag to allow access to the item or area or to otherwise validate the lock tag and key tag. A detector allows access or other validation when a valid key tag is determined to be present within a predetermined range of the lock tag.

Abstract: All-to-all communication is carried out in a wireless mesh network using a relaying packet that is routed through the network. In at least one embodiment, the relaying packet includes aggregated information that is made available to all nodes in the mesh network.

Abstract: An embodiment selects radio frequency parameters that are optimal for an extended service set mesh network having a wireless mesh of several access points and clients. This embodiment may include: periodically scanning, by all access points and clients, channels to maintain an up-to-date channel interference table and to detect an interference source; detecting an interference source; electing a leader access point; gathering, by each access point except the leader access point, information from respective clients of each access point, and sending the information to the leader access point; selecting, by the leader access point, optimal radio frequency parameters using the information received by the leader access point; and disseminating the selected radio frequency parameters to the access points. A system may implement the operational embodiment.