Wifi throughput overhead

If you look at channel Can you see what is utilisation for 2 SSIDs? Yes, it is showing 1. Now refer to the calculator image and you will see 5. Image below is from Aerohive access point and utilisation reading is nearly the same as showing from spectrum analyser.

Save my name, email, and website in this browser for the next time I comment. There are techniques that increase application-level throughput by reducing overhead. For example, in When block acknowledgment is used, multiple data frames can be acknowledged with a single block acknowledgment frame instead of ACKing each data frame one-by-one.

Frame aggregation allows multiple data frames to be sent following a preamble and a physical header in a single transmission. Sources: omnetpp. Use this page in the GitHub issue tracker for commenting on this showcase. IEEE INET version: 4. The Access Point to Client Speed Test tool is especially useful when distinguishing between bandwidth constraints on the Meraki network ex. Please note that the following throughput rates are theoretical for the whole access point , any individual client will be subject to many additional environmental factors that can affect their throughput.

See Datasheet here. Multiple input, multiple output with three spatial streams on 80MHz-wide channels. Maximizing Throughput Optimal throughput rates and wireless performance in general can be improved by mounting APs correctly high up on a wall or on the ceiling.

Short Guard Intervals In Part 1 of this blog series , I mentioned the default ns guard interval. However, avoid using short guard intervals in environments with high reflectivity e.

Frame Aggregation and Block Acknowledgments Where early WLAN operators were making frames smaller fragmentation to avoid collisions, the higher PHY rates of modern networks allow for much larger wireless frames, which drastically improve efficiency. Packing more upper layer data in each frame is the quintessential example of overhead reduction. When aggregation is used, block acknowledgments are as well. Block acks add to the efficiency improvement by using ack bitmaps to indicate successful reception of multiple frames instead of transmitting individual acks for each received frame.

Suck on that, overhead! In most cases, enabling frame aggregation will produce significant capacity improvements. Protection Mechanisms I mentioned previously that older technologies require more time for PHY signaling. In addition to being slow themselves, legacy stations also hold back the more efficient stations by requiring them to protect their own data transmissions.

You also have to factor in an additional one or two SIFS. As before, the solution is to get rid of legacy particularly The shorter protection frames will reserve the medium, allowing the larger data frame to follow with a lower likelihood of collision.