A combination logic design for a high speed IEEE 802.11 MAC controller

Abstract

In this paper, we propose a pure combinational logic design for the implementation of IEEE802.11 Medium Access Control (MAC) protocol, in contrast to firmware implementation based on an embedded micro‐engine. In order to have a timely response, a Control Frame Handler is also included in our MAC controller. A further improvement for timely manipulation on the time‐critical management frames (such as Beacon, ATIM and Probe Response) is subsequently developed in our revised edition. Equipped with a self‐developed PCMCIA unit, the functions of our MAC controller have been verified using two Altera EPF 10K‐100 ARC240–2 FPGAs in an on‐line MAC‐to‐MAC data exchange fashion. Experimental results show that a pure combinational logic design can easily achieve a baseband‐interfacing throughput of over‐100Mbps with a cost‐effect gate count of 21702.