Wifi 802.11g real speed

If so, is there a ratio or reserved bandwidth for the opposite direction? But we need to know how many users? Yes, downstream refers to traffic from the access point to clients. The number of simultaneous clients is mentioned because the available throughput is shared between all clients, i. With a larger number of simultaneous clients, they also compete for a small portion of the 2.

Residential access points can't handle much more than active simultaneous clients. Some commercial aps can reach clients.

Sorry to quibble, but i'm getting Mbps on my Short distance, but there are other devices around. I have But if you can find a 3x3 or 4x4 AC network card, I guess you could see Mbps speeds. File size appr. I'm seeing speeds albeit over only 10feet of 65MBps not Mbps straight out of the box. The AC87 firmware is probably not optimized yet as some reviews seem to find it slower than the AC The tri-band pci adapter makes a huge diffference.

People that claim high speed with short distance: Big deal! This argument is silly. No one cares if you can run wifi fast at short distance.

I can not reach over 20mbps where I need it I see 59 Mbs from a Archer C7 v2 router, comcast blast internet, to my laptop Sager NP 40 feet away in another room. Rooms are open and angled to where it is almost a straight shot. I have a Intel ac dual channel wifi card. I know that many people may not believe it. I have TW Cable internet line Mbps. You get compatibility with your existing infrastructure, a little bonus performance now, and when the time comes, bang you get a big boost.

For those who understand how this works, it is not a bad thing. However the hardware is being marketed to the general public. As a result you can expect that people who see the 5 x faster than b are going to completely skip the small text that disclaims this on the back of the box.

I think everyone would be surprised if this did not include a significant number of ostensibly technically inclined writers who will report that they did not see the improvements advertised, and who will subsequently give the t. No; or not significantly. Last time I measured it on my Sure, if you have interference, then you'll be hitting the retries, in which case the average latency will go up; but under good conditions, it's got negligable latency.

Some newbies have suggested that WiFi takes longer due to propogation through the air- actually the speed of radio waves in air is almost twice that of ethernet signa. Its easy enough to upgrade everything to g-mode only. This allows segmenting the slower clients out of the higher speed network, and increases your overall bandwidth.

Older clients use the somewhat crowded 2. To avoid constraining throughput, TCP uses "sliding windows" and allows multiple outstanding frames to be transmitted before acknowledgement. In practice, TCP acknowledgements can apply to multiple segments, so this model overstates the impact of higher-layer protocol acknowledgements. IEEE has approved a new and final draft standard for That's the one case I don't consider the criticism fair. Personally, I usually use tar, rather than any actual filesystem.

Only if it were possible to format the floppy with only one sector per track, you would cut out most of the overhead, and end up with almost 2 MB. In fact, that's how I originally managed to fit Quake on a pack of floppies Linux systems transparently support formats of up to about 1. So, I don't really see a problem with the claim, since the size is n. There may be more comments in this discussion. Without JavaScript enabled, you might want to turn on Classic Discussion System in your preferences instead.

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His conclusion? In mixed This article has real math based on the specs, rather than armchair speculation. This discussion has been archived. No new comments can be posted. When 54 Mbps isn't 54 Mbps: Full Abbreviated Hidden. More Login. In other news: Score: 4 , Informative. They can't know that because they don't know what protocols you will be running over the network. Share twitter facebook. However, when you connect a 10baseT NIC to a baseT switch, you don't slow down the rest of the connections to the switch, which can still operate at baseT.

Parent Share twitter facebook. Re:but it doesn't slow down the rest of the connec Score: 4 , Informative. Not at all. An auto-sensing hub does anyone still make these? Each port connects to whichever segment it can talk to, and they're switched together internally.

It would be nice if B and G played that nicely in the same spectrum, but they don't. Re:but it doesn't slow down the rest of the connec Score: 2. I stand corrected. But were there not more simplistic hubs that would drop to 10 mbps for all segments? Re:but it doesn't slow down the rest of the connec Score: 1 , Interesting.

Yes, there were. However, they simply ceased selling when smart sensing became available due to their catastrophic effect on bandwidth and the relative inexpense of adding smart sensing. Re:but it doesn't slow down the rest of the connec Score: 1. What I haven't tested is how much actual bandwidth is available to the Mbps nodes while the 10 Mbps node is going full blast.

Some hubs, long time ago, had the feature of dropping speed whenever there was a 10 Mb connecting. This is long ago, but there was You'll save yourself some grief [slashdot.

I got myself one too. No regrets. Re Mbps or not Score: 1 , Offtopic. Why weren't they [msnbc. Why not teargas and SWAT team?

OK, lets say you are one of the people that entered the home. You were shot at. Do you want to go in again, and get shot at more? They tried a swat style entry, were shot at, so decided to retreat and shoot back from a safer position. Sure, it would have been nice to have them alive, but why risk more US deaths for it?

The house had bulletproof windows, who knows what other fortifications lied inside? If you have bulletproof windo. OT: In regards to your sig Score: 3 , Insightful. I think that not taking them alive was an unfortunate, but reasonable, alternative.

I used to be a cop, and did SWAT for about seven years If that situation had turned into a prolonged siege, the brothers might have had the opportunity to contact local resistance elements, get some media attention, and shift the balance of. Re:In other news: Score: 1 , Redundant.

You of course have the overhead of switching, over loaded network etc.. Armchair calculations Score: 4 , Insightful. This doesn't sound much better than armchair speculation either Where are the real-world throughput benchmarks performed with actual equipment? Re:Armchair calculations Score: 5 , Insightful. When I said "armchair speculation," I was referring to the mass of articles that come out that talk about Wi-Fi speeds without actually looking at how the technology works.

Matthew has now provided a baseline. Someone could now perform real-world benchmarks against these theoretical maximums which are built into the standard. Matthew's numbers provide optimal performance guidelines for network planning. Real performance will, of course, be even lower. In the later Then for Service: This field is always set to Within This enables the transmitting station to compute the Duration field in the MAC header.

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