Abstract: A wireless network device includes operating system layer buffers used by an operating system and driver layer buffers used by a wireless network interface driver in the device. Memory stores a capacity bitmap managed by the wireless network interface driver. The capacity bitmap identifies a current capacity of each of the driver layer buffers and the capacity bitmap may be provided to the operating system.

Abstract: Forwarding a flow in a network includes receiving the flow at a switch, determining an optimized priority queue level of the flow at the switch, and forwarding the flow via the switch using an optimized priority queue level of the flow at the switch. The flow passes through a plurality of switches, including the switch, in the network, and the optimized priority queue level of the flow at the switch is different from a priority queue level of the flow at a second switch of the plurality of switches. The second switch routes the flow at the second switch using the different priority queue level for the flow.

Abstract: Optimizing priority queue levels for a flow in a network includes determining a path for the flow, determining an optimized priority queue level of the flow at each of a plurality of switches based on a Quality of Service (QoS) requirement of the flow and priority queue levels of one or more existing flows in the network. Information of the optimized priority queue level of the flow is sent to at each of the switches.

Abstract: Channel assignment for access points (APs) in a wireless network includes determining at least one of a MaxSum and a MaxMin, and determining a channel assignment for the APs based on at least one of the MaxSum and the MaxMin. The MaxSum is a maximization of a system throughput and the system throughput is a sum of throughput of nodes in the network. The MaxMin is a maximization of a minimum throughput of a set of AP-client links in the network. The AP-client link is a link between an AP and a client associated with the AP.

Abstract: A node in a multi-hop wireless network includes a master radio and a surrogate radio. The master radio performs data communication on a main multi-hop path in the multi-hop wireless network, and the surrogate radio simultaneously scans one or more channels in the multi-hop wireless network. A channel manager determines if a link between two different nodes on the main multi-hop path is disconnected, and, in response to determining a disconnection of the link between two different nodes on the main multi-hop path, the data communication is switched to an alternative multi-hop path in the multi-hop wireless network based on information obtained from the scanning of the one or more channels.

Abstract: Channel assignment for access points (APs) in a wireless network includes determining a bottleneck client in an interference relationship, and determining a channel assignment for the APs that maximizes a normalized throughput of the bottleneck client. The normalized throughput is assigned to the bottleneck client, and the bottleneck client is assigned to a fixed set.

Abstract: A wireless node clock is periodically synchronized with a wireless access point clock. The wireless access point clock is globally synchronized with other access points in a network. Failure of the access point is detected. A search is performed for a beacon signal of a neighboring wireless access point that is associated with the network. The neighboring access point also has a globally synchronized clock. The wireless node clock is synchronized with the globally synchronized clock of the neighboring wireless access point.

Abstract: A wireless node receives a beacon from a wireless access point. The beacon includes a wireless protocol time synchronization function (TSF) timestamp generated with reference to a global clock for a network. The wireless node synchronizes a counter according to the TSF timestamp. The wireless node receives a global timing offset (GTO) packet from the wireless access point and combines the GTO packet with a counter value to generate a global timestamp.

Abstract: In one implementation, a region descriptor associated with a communications access point and a location descriptor are accessed at a client. The client determines that a location described by the location descriptor is included within a region described by the region descriptor. The client then requests association with the communications access point in response to the determining.

Abstract: A priority queue assignment technique for quality-of-service (“QoS”) network flows in a network is provided. A network path is determined for an incoming flow including a plurality of network switches associated, with a plurality of priority queue levels. A priority queue level is determined for the incoming flow for at least one of the plurality of network switches in the network path based on priority queue levels of existing flows. The priority queue level of the incoming flow is adjusted, to dynamically balance flows over the plurality of priority queue levels for at least one of the plurality of network switches in the network path based on quality-of-service (“QoS”) requirements associated with the incoming flow.

Abstract: One embodiment provides a wireless network system (10) configured to mitigate co-channel interference. The system comprises a plurality of coverage cells (42,62) arranged to form a communication cluster (40, 60) and a plurality of communication channels (A, B, C) assigned to the plurality of coverage cells to define a plurality of different same channel sets of coverage cells for each communication channel of the plurality of communication channels. Different same channel sets of coverage cells are configured to communicate during different transmission time periods to mitigate co-channel interference.

Abstract: A node in a multi-hop wireless network includes a master radio and a surrogate radio. The master radio performs data communication on a main multi-hop path in the multi-hop wireless network, and the surrogate radio simultaneously scans one or more channels in the multi-hop wireless network. A channel manager determines if a link between two different nodes on the main multi-hop path is disconnected, and, in response to determining a disconnection of the link between two different nodes on the main multi-hop path, the data communication is switched to an alternative multi-hop path in the multi-hop wireless network based on information obtained from the scanning of the one or more channels.

Abstract: Channel assignment for access points (APs) in a wireless network includes determining at least one of a MaxSum and a MaxMin, and determining a channel assignment for the APs based on at least one of the MaxSum and the MaxMin. The MaxSum is a maximization of a system throughput and the system throughput is a sum of throughput of nodes in the network. The MaxMin is a maximization of a minimum throughput of a set of AP-client links in the network. The AP-client link is a link between an AP and a client associated with the AP.

Abstract: Optimizing priority queue levels for a flow in a network includes determining a path for the flow, determining an optimized priority queue level of the flow at each of a plurality of switches based on a Quality of Service (QoS) requirement of the flow and priority queue levels of one or more existing flows in the network. Information of the optimized priority queue level of the flow is sent to at each of the switches.

Abstract: A wireless node receives a beacon from a wireless access point. The beacon includes a wireless protocol time synchronization function (TSF) timestamp generated with reference to a global clock for a network. The wireless node synchronizes a counter according to the TSF timestamp. The wireless node receives a global timing offset (GTO) packet from the wireless access point and combines the GTO packet with a counter value to generate a global timestamp.

Abstract: A wireless node clock is periodically synchronized with a wireless access point clock. The wireless access point clock is globally synchronized with other access points in a network. Failure of the access point is detected. A search is performed for a beacon signal of a neighboring wireless access point that is associated with the network. The neighboring access point also has a globally synchronized clock. The wireless node clock is synchronized with the globally synchronized clock of the neighboring wireless access point.

Abstract: Channel assignment for access points (APs) in a wireless network includes determining a bottleneck client in an interference relationship, and determining a channel assignment for the APs that maximizes a normalized throughput of the bottleneck client. The normalized throughput is assigned to the bottleneck client, and the bottleneck client is assigned to a fixed set.

Abstract: The present disclosure is directed to networks having reduced power consumption characteristics and associated methods. In one aspect, a method for reducing power consumption in a multi-hop network can include receiving data at a plurality of primary nodes in a multi-hop network and transmitting the data from the plurality of primary nodes to a plurality of secondary nodes. Individual primary nodes have nearest neighbors at a defined distance and the secondary nodes are spaced at a distance that is greater than the defined distance away from individual primary nodes. Data is transmitted from a given primary node to a secondary node by skipping at least one intervening node and reducing power consumption of the wireless network.

Abstract: An inverter device for a liquid crystal display includes a transformer for receiving an inverter drive voltage, converting the received drive voltage into an AC lamp drive voltage and supplying the AC lamp drive voltage to a high path of a backlight lamp, a low path switching part selectively connecting a low path of the backlight lamp with a ground voltage source in response to an external inverter ON/OFF signal, and a shutdown circuit for receiving a voltage input through the low path of the backlight lamp to monitor for a malfunction of the backlight lamp in response to an external shutdown ON/OFF signal.

Abstract: An inverter device for a liquid crystal display includes a transformer for receiving an inverter drive voltage, converting the received drive voltage into an AC lamp drive voltage and supplying the AC lamp drive voltage to a high path of a backlight lamp, a low path switching part selectively connecting a low path of the backlight lamp with a ground voltage source in response to an external inverter ON/OFF signal, and a shutdown circuit for receiving a voltage input through the low path of the backlight lamp to monitor for a malfunction of the backlight lamp in response to an external shutdown ON/OFF signal.