An application can achieve a data rate of 100 kbps in the state of the art devices using BLE. Usually it is lesser than this. The theoretical maximum data rate was 236.7 kbps with BLE (v4.0 and v4.1). With v4.2 this would increase by 2.5 times. This is because the maximum payload in the link layer is increased from 39 octets to 257 octets, which increases the amount of 'useful' data sent per packet.
Out of the 39 bytes (v4.1) and 257 bytes (v4.2), how many are the data bytes to calculate the effective data throughput of 236.7kbps(v4.1) and 650kbps (v4.2).
Funny how security didn't become a big issue until a certain leak exposed how rampantly privacy was being run ramshod over. Suddenly, it's everywhere. Even in wireless connection specs meant to enable connecting to public devices.
I'm not complaining about the shift in attitudes, but it's interesting to see how the attitude about enabling "security" features against large entities being able to track you have shifted in such a short time.
I guess that's what the NSA did for us. If they hadn't overreached, they wouldn't have proven to people that gross overreach was inevitable.
Now if they could just figure out how to make Bluetooth reliably negotiate a connection anytime ever, we'd be all set. I'm really not looking forward to a world where Bluetooth is used for anything other than cheap headphones and mice.
Good information. Thanks. Qs, We are thinking about replacing all our Keyboard and mousing to wireless , at the same time, making sure that the key taps are not hijacked with MIM attacks or such. BT 4.2 qualifies for this requirement but does anyone know if Windows/MAC (maybe linux too) support this? If yes, any timeline would be very helpful. Thanks
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prithvirajnarendra - Thursday, December 4, 2014 - link
An application can achieve a data rate of 100 kbps in the state of the art devices using BLE. Usually it is lesser than this. The theoretical maximum data rate was 236.7 kbps with BLE (v4.0 and v4.1). With v4.2 this would increase by 2.5 times. This is because the maximum payload in the link layer is increased from 39 octets to 257 octets, which increases the amount of 'useful' data sent per packet.Brett Howse - Thursday, December 4, 2014 - link
You're correct I pulled the numbers from the spec but they are obviously for standard Bluetooth. I'll update the info thanks!sweetca - Thursday, December 4, 2014 - link
The "Nerd" is strong in this one.prithvirajnarendra - Thursday, December 4, 2014 - link
Well, that's my Master thesis talking. Can't let a site like AnandTech post completely wrong data.reininop - Friday, December 5, 2014 - link
And that is why I come here. The comments are nearly as informative as the reviews.hsingh - Tuesday, December 16, 2014 - link
Out of the 39 bytes (v4.1) and 257 bytes (v4.2), how many are the data bytes to calculate the effective data throughput of 236.7kbps(v4.1) and 650kbps (v4.2).HisDivineOrder - Thursday, December 18, 2014 - link
Funny how security didn't become a big issue until a certain leak exposed how rampantly privacy was being run ramshod over. Suddenly, it's everywhere. Even in wireless connection specs meant to enable connecting to public devices.I'm not complaining about the shift in attitudes, but it's interesting to see how the attitude about enabling "security" features against large entities being able to track you have shifted in such a short time.
I guess that's what the NSA did for us. If they hadn't overreached, they wouldn't have proven to people that gross overreach was inevitable.
benzosaurus - Saturday, December 20, 2014 - link
Now if they could just figure out how to make Bluetooth reliably negotiate a connection anytime ever, we'd be all set. I'm really not looking forward to a world where Bluetooth is used for anything other than cheap headphones and mice.tazaguru - Monday, June 1, 2015 - link
Good information. Thanks. Qs, We are thinking about replacing all our Keyboard and mousing to wireless , at the same time, making sure that the key taps are not hijacked with MIM attacks or such. BT 4.2 qualifies for this requirement but does anyone know if Windows/MAC (maybe linux too) support this? If yes, any timeline would be very helpful. Thanks