This paper will discuss the issues of supporting multiple data rates (1/2/5.5/11Mbps) over an infrastructure wireless network. With the characteristic of modulation schemes, the data rate is inversely proportional with the transmission distance. A moving mobile station needs dynamically adjust its modulation scheme to achieve maximum network throughput and to keep the connection alive. In this paper, we will introduce a simple broadcasting approach to inform mobile stations the location information. Moreover, a hybrid handshaking protocol is also designed to help maintaining high channel utilization. Finally, the fairness problem of multi-rate wireless network is also being discussed and solved by using the proposed fuzzy controller.
2001中華民國第九屆模糊理論及其應用會議論文集=Proceedings of 2001 Ninth National Conference on Fuzzy Theory and Its Applications，6頁