Re: Wifi handshake for Multipeer Connectivity to allow greater client separation?
Re: Wifi handshake for Multipeer Connectivity to allow greater client separation?
- Subject: Re: Wifi handshake for Multipeer Connectivity to allow greater client separation?
- From: Michael Norris <email@hidden>
- Date: Wed, 20 Jan 2016 16:05:08 +1300
As Apple’s implementation of multipeer networking uses a Bluetooth LE handshake, I am limited in distance to about 10 metres which is simply not enough.
MultipeerConnectivity doesn't use Bluetooth LE, it's built on standard NSNetServices with includesPeerToPeer.
Thanks Marc. I’ve managed to confirm you’re right, and MPC still works even if I turn Bluetooth off. (Interestingly AirDrop requires Bluetooth to be turned on, which is where I got the idea that it had to be using that).
However, even with Bluetooth switched off, this still doesn’t solve my distance problem. With the two computers positioned c. 25 metres apart, I can easily create an ad-hoc Wifi network on one which shows about 4 bars signal strength on the other (RSSI around -55 dBM). But in my MPC app, it doesn't start seeing the other peer until I move my laptop to about half the distance (about 10 m apart).
So why then is the proximity of 25m good enough for joining ad-hoc Wifi networks, but not good enough for browsing MPC services over Wifi?
(As an aside, if I go ahead join the ad-hoc Wifi network I created, the MPC service suddenly shows up in the client’s service browser… I thought the point of MPC was that you *didn’t* have to be part of a network for it to work…?)
Thanks Michael |
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