【作者】 陈亮；

【导师】 陈彦辉；

【作者基本信息】 西安电子科技大学 ， 通信与信息系统， 2006， 硕士

【摘要】 无线移动自组织网络技术是后3G通信系统的重点技术之一,而无线网络的MAC协议设计是其中的关键技术。本文主要探讨了第三代自动链路建立(3G-ALE)和IEEE 802.11 DCF两种多址接入协议。主要研究工作和研究成果如下:1.介绍了现有的各种Ad Hoc网络MAC协议,分析和比较了各自的特点和适用环境,在此基础上提供了未来MAC协议研究的若干方向。2.详细描述了3G-ALE基本多址协议,提出一种基于3G-ALE的短波多信道多址接入技术,并在实验系统平台上设计和实现了该多址接入方案。3.参考IEEE 802.11标准,结合短波组网课题需求,设计并实现了基于IEEE 802.11 DCF(CSMA/CA)的MAC多址接入方案,给出了其工程模型和软件模块化设计思想。4.为了提供QoS保障,在802.11 DCF协议上引入一种竞争感知的接入控制技术(CACP)来管理信道带宽,并通过仿真验证了其正确性和有效性。更多还原

【Abstract】 Wireless self-organization network is one of the most important technologies in the beyond–3G era. The design of MAC protocol is the key technology in wireless network. Both the third generation Automatic Link Establishment (3G-ALE) and IEEE 802.11 MAC protocols are chiefly studied in this paper. The main work and achievements are shown as follows:1. Recent researches on MAC protocol in Ad Hoc network are introduced, and comparisons between them are also discussed. Research trend of MAC protocol is given.2. HF 3G-ALE is discussed in detail. Then a novel multi-channel multiple access technology based on 3G-ALE is proposed, the implement with experiment platform is given as well.3. According to IEEE 802.11 standard, a design and realization of MAC protocol based on 802.11 DCF (CSMA/CA) is presented. The engineering model and software module frame are described.4. Due to 802.11 DCF’s lack of supporting QoS, a contention-aware admission control protocol(CACP) technology is adopted to manage wireless channel bandwidth. Simulation results demonstrate the accuracy and effectiveness of this admission control.更多还原