Abstract:
Systems, methods, and devices for communicating short control frames are described herein. In some aspects, a method of wireless communication includes generating a control frame comprising a physical layer preamble having a signal field, the signal field including an indicator indicating the control frame is a control frame type of frame. The method further includes transmitting the control frame.
Abstract:
Devices, systems and methods are described for mitigating interference in a wireless communications network. In particular, the network may be a Wi-Fi network. Multiple approaches may be implemented to mitigate ACI. Further, multiple approaches may be implemented to mitigate non-Wi-Fi interference as well. Each of the approaches may consist of two parts, namely, interference detection and interference mitigation (or reduction). One approach may involve: detecting adjacent channel interference (ACI) in an operating channel of the device; determining a location of the detected ACI in an operating band of the device; and mitigating the detected ACI by communicating via a channel different from the operating channel, the different channel being determined to be further away from the location of the detected ACI.
Abstract:
A method for communicating Neighborhood Information includes generating the Neighborhood Information at an access point. The method also includes communicating the Neighborhood Information from the access point to a second access point in a Neighbor Aware Network (NAN).
Abstract:
Systems, methods, and computer readable mediums for authenticating a device are disclosed. In some aspects, a method includes determining, using a second device, a key shared with the first device, generating, by the second device, a first pairwise master key (PMK) based on the key shared with the first device. The method may also include generating, by the second device, a second pairwise master key (PMK) for a first access point based on the first pairwise master key, and one or more properties of the first access point. The method then transmits the second pairwise master key to the first access point. The first access point may use the second pairwise master key to facilitate secure communication with the first device. For example, the first access point may encode/encrypt and/or decode/decrypt messages exchanged with the first device based on the second pairwise master key.
Abstract:
Systems and methods for selecting medium access parameters for each communication session are disclosed. In one aspect an access point includes a processor configured to select a value for a medium access parameter for a particular communication session between the access point and a wireless station.
Abstract:
Methods, devices, and computer program products communicating discovery information in a wireless neighborhood aware network (NAN). One method includes receiving, at a first wireless device, a message from a neighboring wireless device. The message includes a data structure indicative of discovered device identifiers. The method further includes determining whether the data structure indicates an identifier of the first wireless device. The method further includes transmitting a message including the identifier of the first wireless device when the data structure does not indicate the identifier of the first wireless device.
Abstract:
Methods, devices, and computer program products for selective scanning of ad-hoc networks are described herein. In one aspect, a method includes receiving a message identifying a number of times the message has been forwarded. The method further includes selectively scanning for other ad-hoc networks based on the identified number. In one aspect, a root device for an ad-hoc network is responsible for generating synchronization messages for nodes of the ad-hoc network. The synchronization message includes a count of the number of times the synchronization message has been forwarded. When the hop count reaches a limit, the synchronization message is no longer retransmitted or forwarded by receiving nodes. Nodes receiving this message may recognize they are positioned near the edge of the ad-hoc network. In at least one embodiment, these nodes may selectively scan for other ad-hoc networks based on the hop count reaching or exceeding a predetermined threshold.
Abstract:
Methods, devices, and computer program products for optimization of branch synchronization node determination in a peer-to-peer network are disclosed herein. In one aspect, a higher-level node, such as a root node broadcasting master clock synchronization messages to other devices, may determine a dynamic signal strength threshold and send it in those synchronization messages. This dynamic threshold may be determined to ensure that at least a certain percentage of receiving nodes are potential branch nodes, based on the received signal strengths of those nodes at the root node. This method can reduce device energy consumption by only requiring edge devices to relay the synchronization messages, and they can be dynamically identified based on the threshold. In addition, a branch node can also use the dynamic signal strength threshold to help the determination of its potential next-hop branch nodes.
Abstract:
A method of communication includes transmitting a message from a first electronic device of a neighbor aware network (NAN) to a second electronic device of the NAN via a first communication channel of a plurality of communication channels during a discovery window. The message indicates that the first electronic device is available to communicate. The method also includes monitoring a second communication channel of the plurality of communication channels during a first paging window of a transmission window. The first paging window includes a beginning portion of the transmission window, and electronic devices of the NAN are in an active state during the first paging window.
Abstract:
Systems, methods, and devices for narrowband channel selection in a wireless communications network are described herein. In one aspect, a wireless communications device includes a receiver, processor, and transmitter. The receiver is configured to wirelessly receive messages from a first device over a plurality of channels. The processor is configured to estimate a quality of each channel based on one message received from the first device over each channel, select for wireless communication a first channel of the plurality of channels based on the estimated quality of each channel, and prepare a selection message indicating selection of the first channel for wireless communication. The transmitter is configured to transmit the selection message to the first device.