Distributed Medium Access Control Method through Inductive Reasoning
Jaesung Park, Changyong Yoon · International Journal of Fuzzy Logic and Intelligent Systems · 2021
Wireless local area network (WLAN) uses a medium access control method based on the carrier sense multiple access with collision avoidance (CSMA/CA).In CSMA/CA, each station maintains a contention window by adjusting its size according to the perceived contention level.By making a station autonomously choose a waiting time randomly, using its current contention window size, CSMA/CA resolves the channel contention problem among a set of stations in a distributed manner.However, because the contention window size is limited, the packet collision probability increases sharply as the number of stations, with data to send, increases.To resolve this problem, we propose a novel medium access control method using a minority game.In the proposed method, each station learns the current contention level in a distributed manner and decides whether to send a packet using the acquired knowledge to decrease its packet collision probability.Through simulation studies, we show that compared with CSMA/CA and random selection methods, the proposed method decreases both the packet collision probability and the time interval between successful packet transmissions.