Control method to guarantee throughput based on media access control method SP-MAC over WLAN

Wireless local area networks (WLAN) based on IEEE 802.11 usually employ carrier sense multiple access with collision avoidance (CSMA/CA) for media access control. In the CSMA/CA mechanism, data frame collisions often occur if the number of wireless terminals increases. This problem decreases the total throughput of terminals connected to the same access point. To address this problem, a media access control method based on the synchronization phenomena of coupled oscillators (SP-MAC) has been proposed. Previous studies have confirmed that SP-MAC can significantly decrease the number of data frame collisions and improve total throughput compared to CSMA/CA. However, the previous studies did not consider a QoS control based on SP-MAC. This study focuses on throughput as a QoS metric. This study proposes a control method to guarantee throughput based on SP-MAC. Furthermore, this study evaluates the effectiveness of the proposed method through simulation experiments. The simulation results demonstrate that the proposed method can control the throughput of each terminal without decreasing total throughput. Furthermore, this study shows that the proposed method can guarantee throughput for a specified terminal.