Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) Protocol Using MATLAB Communication System Toolbox For Software Defined Radio

Abstract

Abstract- This project models the CSMA/CA MAC protocol based on the 802.11 DCF using the MATLAB communications toolbox. It incorporates the key features of carrier sensing, exponential backoff, frame transmission, and uses QPSK at the physical layer. It leverages specific performance enhancing provisions, such as accelerated mode and real time targeting, to closely follow the protocol specifications. Carrier sensing is based on non-coherent detection, which eliminates exact phase locking with the transmitter, and thereby reduces the design complexity.