About wireless technologies Alljoyn supports

asked 2014-04-05 18:35:23 -0700

poka_poka gravatar image

updated 2014-04-05 18:36:47 -0700

I'm sorry for asking this kind of questions repeatedly, but I want to be more precise of this. So my question is: Is it true that WiFi is the only wireless technology Alljoyn currently supports?(no BT/WiFi Direct)

I thought that Alljoyn supports those three kinds of wireless(WiFi, BT and WiFi Direct) and it can be used to enable direct d2d connections, but I'm a little bit confused now..

Thank you

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answered 2014-04-07 09:26:20 -0700

bspencer gravatar image

AllJoyn can support any number of wireless transports because it is a wire protocol that sends an AllJoyn message that describes the destination, session, sender, payload and other bits of information. These messages today flow over Wi-Fi, and any IP transport for that matter.
In the past AllJoyn was running over Bluetooth, however as Marcello has pointed out here: https://ask.allseenalliance.org/question/54/when-do-this-define-the-aj_enable_bt/
Due to the nature of BT performance and the ability to have this running out of the box on all platforms it has been removed from the source code.
Wi-Fi direct, if you look at the code is still around for Android, but commented out. The reason is that it has Interoperability issues between different OS and different device manufactures within the same OS.

So to answer your question again, today any local IP transport will allow for AllJoyn communication (Wi-Fi, ethernet, power line, etc). In the past it was supported over Bluetooth and Wi-Fi Direct, but has since been removed due inconsistencies between platforms.

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Asked: 2014-04-05 18:35:23 -0700

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Last updated: Apr 07 '14