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Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

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Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#52

Post by lp_literate »

lp_literate wrote: post #51

So only one way (upstream) communication via "beacons"? What about downstream - thats where the complexity is.

And BT uses adaptive frequency hopping which is huge for avoiding interference.

Ultimately, your BT experience will vary depending on whether your device vendor has implemented advanced features, and done interoperability tests.

Lastly, BT could relatively easily move to the shiny new 6 GHz spectrum and make use of Very Low Power (VLP) assuming there is some spectrum harmonization done all over the world. https://docs.fcc.gov/public/attachments/DOC-363490A1.pdf

Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#53

Post by admax88q »

pitaj wrote: post #50
admax88q wrote: post #21

I think there is a wirelrss revolution around the corner being held up by patents, closed chipsets, and closed firmwares. Look at what was necessary in this papet, thr IoT device pretends to be an access point to bypass all the layers in the stack that would filter out thr packet. In this case they found a hack to workaround chipset/firmware limitations, but what other innovations havent happened due to inaccesible w…

I can't tell if "thr" is a typo of "the" or an abbreviation of "their".

lol typo of "the." I hate typing on mobile.

Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#54

Post by orhmeh09 »

reaperducer wrote: post #46
eru wrote: post #45

Earlier quoted context omitted.

Slightly off-topic: Caring about slight latency differences but then still using joysticks for a shooter seems rather weird.

And yet when the military wants to shoot for real, it uses joysticks and not keyboards.

That implies nothing about their suitability as an interface for shooters. The military has other concerns that don’t apply here, like field reliability, and decades of established practices and equipment.

Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#55

Post by userbinator »

the_only_law wrote: post #17
sodality2 wrote: post #2

I hope so. I have issues with BT about once every time I use it.

I’ve heard multiple times that apparently a lot of proprietary Bluetooth stacks are filled to the brim with bugs. I’m not sure how complex the Bluetooth spec is but I wouldn’t be surprised if it were true. It’s also part of why I can’t stand the trend of remove the headphone jack from devices.

AFAIK the spec is a free download, I have the "Bluetooth Core 5.0" one and it's 2822 pages long.

I also have the one for WiFi (802.11-2012) and that is 2793 pages, so I'd say they are of roughly equal complexity.

Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#56

Post by the_only_law »

userbinator wrote: post #55
the_only_law wrote: post #17

Earlier quoted context omitted.

I’ve heard multiple times that apparently a lot of proprietary Bluetooth stacks are filled to the brim with bugs. I’m not sure how complex the Bluetooth spec is but I wouldn’t be surprised if it were true. It’s also part of why I can’t stand the trend of remove the headphone jack from devices.

AFAIK the spec is a free download, I have the "Bluetooth Core 5.0" one and it's 2822 pages long. I also have the one for WiFi (802.11-2012) and that is 2793 pages, so I'd say they are of roughly equal complexity.

Yeah, I have tried to read that WiFi spec and I was kinda overwhelmed.

Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#57

Post by otabdeveloper4 »

Where I live the Wi-Fi spectrum is already busted. There are several dozen visible access points right now, and if I go outside where no metal shielding is happening I'd probably see 100 or more of them.

And that's just the well-behaving honest Wi-Fi access points, not all the other crap on these frequencies that periodically destroys signal with interference.

Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#58

Post by AndrewDucker »

otabdeveloper4 wrote: post #57

Where I live the Wi-Fi spectrum is already busted. There are several dozen visible access points right now, and if I go outside where no metal shielding is happening I'd probably see 100 or more of them. And that's just the well-behaving honest Wi-Fi access points, not all the other crap on these frequencies that periodically destroys signal with interference.

Bluetooth uses exactly the same spectrum as one of the WiFi frequencies (2.4GHz).

Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#59

Post by otabdeveloper4 »

AndrewDucker wrote: post #58
otabdeveloper4 wrote: post #57

Where I live the Wi-Fi spectrum is already busted. There are several dozen visible access points right now, and if I go outside where no metal shielding is happening I'd probably see 100 or more of them. And that's just the well-behaving honest Wi-Fi access points, not all the other crap on these frequencies that periodically destroys signal with interference.

Bluetooth uses exactly the same spectrum as one of the WiFi frequencies (2.4GHz).

Yeah, that's probably a contributing factor to the problem.

Re: Wi-LE: Can WiFi replace Bluetooth? (2019) [pdf]

#60

Post by SkyPuncher »

Causality1 wrote: post #13
TehCorwiz wrote: post #3

Yes, or, at least it has been used to do so. Microsoft's xbox 360/xbox one USB controller adapter is actually a standard wifi adapter with a custom firmware. Source: https://github.com/medusalix/xow#how-it-works

That's due to range and especially latency issues with Bluetooth. It's one reason competitive shooters were more popular on the 360 than the Ps3 with its Bluetooth gamepad.

> . It's one reason competitive shooters were more popular on the 360 than the Ps3 with its Bluetooth gamepad.

I played a LOT of Call of Duty and PS3. I never noticed input latency issues.

I think shooters where more popular on XBox because Halo took over a ton of the initial market share.

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