Association Control for Wireless LANs: Pursuing Throughput Maximization and Energy Efficiency
Because the Access Points (APs) and the STAtions (STAs) of a community access network are deployed at the users' desired places, the APs and STAs tend to concentrate in certain areas. A concentration of STAs often results in the AP(s) and STAs in that particular area suffering from severe congestion. A concentration of APs, on the other hand, may cause energy wastage. While a number of association control schemes are proposed to alleviate congestion in WLANs, the existing schemes do not necessarily maximize throughput and do not consider energy consumption. In this paper, the authors analytically formulate the network throughput as the multiplication of the success probability, frame transmission rate, and channel air-time ratio.