What is nghub wifi?

The iHub/ngHub is a wifi access point and broadcasts its network name/SSID. It's a Belair brand router that shows up as Cable Wifi on a list of wifi connections. Solution: ADT's Pulse service uses the iHub for security and home automation which broadcasts its SSID as “iHub_

Wi-Fi Aware networking works by forming clusters with neighboring devices, or by creating a new cluster if the device is the first one in an area. This clustering behavior applies to the entire device and is managed by the Wi-Fi Aware system service; apps have no control over clustering behavior. Apps use the Wi-Fi Aware APIs to talk to the Wi-Fi Aware system service, which manages the Wi-Fi Aware hardware on the device.

The Wi-Fi Aware APIs let apps perform the following operations:

Wi-Fi Aware network connections support higher throughput rates across longer distances than Bluetooth connections. These types of connections are useful for apps that share large amounts of data between users, such as photo-sharing apps.

Android 12 (API level 31) adds some enhancements to Wi-Fi Aware:

To set up your app to use Wi-Fi Aware discovery and networking, perform the following steps:

For more information, see Broadcasts.

To start using Wi-Fi Aware, your app must obtain a WifiAwareSession by calling attach(). This method does the following:

If the app attaches successfully, the system executes the onAttached() callback. This callback provides a WifiAwareSession object that your app should use for all further session operations. An app can use the session to publish a service or subscribe to a service.

Your app should call attach() only once. If your app calls attach() multiple times, the app receives a different session for each call, each with its own namespace. This could be useful in complex scenarios, but should generally be avoided.

To make a service discoverable, call the publish() method, which takes the following parameters:

Here's an example:

If publication succeeds, then the onPublishStarted() callback method is called.

After publication, when devices running matching subscriber apps move into the Wi-Fi range of the publishing device, the subscribers discover the service. When a subscriber discovers a publisher, the publisher does not receive a notification; if the subscriber sends a message to the publisher, however, then the publisher receives a notification. When that happens, the onMessageReceived() callback method is called. You can use the PeerHandle argument from this method to send a message back to the subscriber or create a connection to it.

To stop publishing the service, call DiscoverySession.close(). Discovery sessions are associated with their parent WifiAwareSession. If the parent session is closed, its associated discovery sessions are also closed. While discarded objects are closed as well, the system doesn't guarantee when out-of-scope sessions are closed, so we recommend that you explicitly call the close() methods.

To subscribe to a service, call the subscribe() method, which takes the following parameters:

Here's an example:

If the subscribe operation succeeds, the system calls the onSubscribeStarted() callback in your app. Because you can use the SubscribeDiscoverySession argument in the callback to communicate with a publisher after your app has discovered one, you should save this reference. You can update the subscribe session at any time by calling updateSubscribe() on the discovery session.

At this point, your subscription waits for matching publishers to come into Wi-Fi range. When this happens, the system executes the onServiceDiscovered() callback method. You can use the PeerHandle argument from this callback to send a message or create a connection to that publisher.

To stop subscribing to a service, call DiscoverySession.close(). Discovery sessions are associated with their parent WifiAwareSession. If the parent session is closed, its associated discovery sessions are also closed. While discarded objects are closed as well, the system doesn't guarantee when out-of-scope sessions are closed, so we recommend that you explicitly call the close() methods.

To send a message to another device, you need the following objects:

To send a message, call sendMessage(). The following callbacks might then occur:

Though the PeerHandle is required to communicate with peers, you should not rely on it as a permanent identifier of peers. Higher-level identifiers can be used by the application--embedded in the discovery service itself or in subsequent messages. You can embed an identifier in the discovery service with the setMatchFilter() or setServiceSpecificInfo() method of PublishConfig or SubscribeConfig. The setMatchFilter() method affects discovery, whereas the setServiceSpecificInfo() method does not affect discovery.

Embedding an identifier in a message implies modifying the message byte array to include an identifier (for example, as the first couple of bytes).

Wi-Fi Aware supports client-server networking between two Wi-Fi Aware devices.

To set up the client-server connection:

A device with Wi-Fi RTT location capabilities can directly measure distance to peers and use this information to constrain Wi-Fi Aware service discovery.

The Wi-Fi RTT API allows direct ranging to a Wi-Fi Aware peer using either its MAC address or its PeerHandle.

Wi-Fi Aware discovery can be constrained to only discover services within a particular geofence. For example, you can set up a geofence that allows discovery of a device publishing an "Aware_File_Share_Service_Name" service that is no closer than 3 meters (specified as 3,000 mm) and no further than 10 meters (specified as 10,000 mm).

Wi-Fi is not an acronym; it is a brand name created by a marketing firm that’s meant to serve as an interoperability seal for marketing efforts.

On the technical side, the IEEE 802.11 standard defines the protocols that enable communications with current Wi-Fi-enabled wireless devices, including wireless routers and wireless access points. Wireless access points support different IEEE standards.

Each standard is an amendment that was ratified over time. The standards operate on varying frequencies, deliver different bandwidth, and support different numbers of channels.

A wireless access point (AP) allows wireless devices to connect to the wireless network. Having a Cisco wireless network makes it easy to bring new devices online and provides flexible support to mobile workers.

What a wireless access point does for your network is similar to what an amplifier does for your home stereo. An access point takes the bandwidth coming from a router and stretches it so that many devices can go on the network from farther distances away. But a wireless access point does more than simply extend Wi-Fi. It can also give useful data about the devices on the network, provide proactive security, and serve many other practical purposes.

Wireless routers are commonly found in homes. They're the hardware devices that Internet service providers use to connect you to their cable or xDSL Internet network.

A wireless router is sometimes referred to as a wireless local area network (WLAN) device. A wireless network is also called a Wi-Fi network.

A wireless router combines the networking functions of a wireless access point and a router. Read more about wireless routers.

The most common way for users to connect to the Internet wirelessly is with a desktop wireless (Wi-Fi) router. These routers look like small boxes with multiple short antennas to help broadcast the signal throughout a home or workplace. The farther a user is from the base Wi-Fi router, the weaker the signal. So multiple wireless routers, called range extenders, usually are placed throughout the workspace. Wi-Fi range extenders, placed in an array, boost or extend Internet coverage.