Throughput Characteristics Evaluation of Media Access Control Method Based on Synchronization Phenomena of Coupled Oscillators over WLAN Coexisting of CSMA/CA Terminals

Wireless local area networks, based on the distributed coordination function of the IEEE802.11 standard, usually use carrier sense multiple access with collision avoidance (CSMA/CA) for media access control. In the CSMA/CA method, if the number of wireless terminals increases, data frame collision often occurs among wireless terminals, which results in a decrease in the total throughput. Therefore, to improve the total throughput, a media access control method based on the synchronization phenomena of coupled oscillators, which we refer to as SP-MAC, is proposed. However, the performance of terminals based on SP-MAC, which coexist with CSMA/CA terminals, has not been sufficiently evaluated. Therefore, in this study, we evaluate the throughput performance in detail when terminals based on SP-MAC coexist with those based on CSMA/CA.