【摘要】 红外线作为室内通信无线传输媒质,具有低成本、低功耗等特点。本文描述了IEEE 802.11红外局域网媒质访问控制协议(MAC)和红外数据协会(IrDA)提出的高级红外媒质访问控制层协议(AIr MAC);研究了两种协议性能估计模型并利用OPNET 仿真工具对IEEE 802.11 MAC与高级红外AIr MAC接入性能进行了仿真验证。通过对两种MAC协议接入方式、吞吐量性能估计模型以及吞吐量性能仿真结果进行比较分析,总结了IEEE 802.11红外局域网媒质接入协议和高级红外媒质接入协议之间的不同之处。更多还原

【Abstract】 As one of the transmission media for short range indoor wireless data communications, Infrared (IR) medium has the features of low cost and low power consumption. IEEE 802.11 Infrared W-LAN and Infrared Data Association (IrDA) Advanced Infrared Medium Access Control (AIr MAC) layer protocols are presented; Two performance evaluation models are studied and simulation verification of the results is provided by using the OPNET Modeler package; A performance comparison is made between the IEEE 802.11 Infrared WLAN and the IrDA Advanced Infrared MAC protocols by analyzing the MAC protocols, the throughput performance evaluation model and the simulation results.更多还原