The effect of selfish behavior in mobile networks using CSMA/CA

It can be shown that in a communication system which uses CSMA/CA for medium access control greedy behavior can be discouraged by punishing the greedy users. However in a real system it is not always possible to punish a misbehaving user. Actually numerical experiments show that it is difficult to achieve enough punishment do discourage greediness since it takes time to detect that a user misbehaves and the time that a user can be punished is limited due to capture effects.