A centralized channelization scheme for wireless LANs exploiting channel bonding
Made Harta Dwijaksara, Wha Sook Jeon, Dong Geun Jeong · 2018
The conflicting channel allocation between the neighboring access points (APs) causes the channel sharing and interference between APs. Thus, the channelization scheme has a critical role to tackle this issue. Furthermore, to improve the network throughput, the channelization scheme may exploit the channel bonding feature of the latest Wi-Fi standard. However, since the channel bonding may degrade the network performance if it is allocated inappropriately, the channel bonding assignment should be performed carefully. In this paper, the proposed channelization scheme utilizes the interference graph to assign the channel (including the channel bonding) for each AP. The channel allocation problem is formulated with the objective of maximizing the total network throughput. Then, given the channel bonding assignment, the primary channel location for each AP is determined by observing whether the AP supports the static or dynamic channel bonding. According to the experiment, the proposed scheme successfully exploits the channel bonding even though in the dense Wi-Fi environment. The experiment using commercial devices shows that the proposed scheme outperforms the comparison schemes in terms of the total network throughput.