The medium access scheme of IEEE 802.11 standards is a critical part which influences the
end-to-end delay or collision ratio. Carrier Sense Multiple
Access with Collision Avoidance (CSMA/CA) is a medium
access protocol for wireless communication which aims at
reducing packet collision while enabling to access a shared
medium. In this context, the characteristics of the
Distributed Coordination Function (DCF) have been
analyzed. Especially SIFS-, DIFS- and Slot-Times need to
be appropriately adapted in order to optimize their influence
on the performance of a wireless system.