Carrier sense multiple acces with enhanced collision avoidance

Author: 
Jaume Barceló
Director(s): 
Dr. Miquel Oliver
Summary: 

This thesis suggests the use of a deterministic backoff after successful transmissions in the MAC protocol of WLANs. Since those stations that successfully transmitted in their last collision attempt cannot collide among them in their next transmission attempt, the number of collisions is reduced. Hence, the protocol is called Carrier Sense Multiple Access with Enhanced Collision Avoidance. The protocol is modelled and simulations are used to assess its performance in a variety of scenarios. It is concluded that the proposed protocol performs always equal or better than the legacy one.

Defense date: 
20/03/2009
Keywords: 
Random access protocols, MAC, EDCA, DCF, IEEE 802.11, performance, WLAN, carrier sense multiple access with enhanced collision avoidance, CSMA/ECA