To provide a high overall thoughput and a fair allocation of throughput to streams for the wireless LAN's.
This paper proposes a media access protocol, MACAW, which is derived from MACA and adopts an RTS-CTS-DS-DATA-ACK message exchange and a significantly different backoff algorithm.
The key observations and the improvements of the protocol followed include:
From the data provided, we also notice that two assumptions are made by the authors:
Complex protocols and algorithms can be designed to improve some kind of performance, the result is the tradeoff on some other properties or cases. For example, reliability and fairness can be got with a high overall throughput in some models of wireless LAN, as characterized in the paper.