Date Added: Aug 2011
In wireless LANs one thing is certain, wireless performance is often not as advertised. Wireless is a shared medium, meaning that all clients and neighboring APs compete for the same limited bandwidth, in addition, each client's speed varies depending on the protocol it is running (802.11 a/b/g/n) and the signal strength, interference and noise it is experiencing. Older clients using lower speed protocols, interference, inconsistent RF coverage and clients connecting at the fringe of the network or moving behind obstructions all lead to low data rate connections. These slow clients consume more airtime to transfer a given amount of data, leaving less airtime for other clients, decreasing network capacity and significantly degrading the performance of all clients on the network.