对等结构无线局域网性能OPNET仿真分析.docVIP

PAGE / NUMPAGES 学号 毕业设计(论文) 题目: 对等结构无线局域网性能的OPNET仿真分析 作 者 届 别 院 别 信息与通信工程学院 专 业 通信工程 指导教师 周云辉 职 称 讲 师 完成时间 摘要 随着网络规模与网络带宽的不断扩大、数据网络的迅猛的发展、网络应用日益复杂，需要不断更新网络技术，这就需要一种能够客观、可靠地对网络进行规划和分析。网络仿真以其独有的方法为网络的规划设计提供客观、可靠的定量依据，缩短网络建设周期，提高网络建设中决策的科学性，降低网络建设的投资风险。而OPNET作为目前最典型的网络仿真软件,凭借其良好的可操作性和强大的性能在网络仿真领域得到了广泛的应用。 本文对基于对等结构的无线局域网进行建模仿真分析，在OPNET环境下，建立两个可比较的网络模型，采集吞吐量、负载、延迟等仿真结果的数据，对IEEE 802.11 b/a/g协议的性能进行比较分析。 关键词: 网络仿真；OPNET；WLAN；IEEE802.11；对等结构 ABSTRACT Along with the continuous expansion of Network scale and network bandwidth, the fast fierce development of data network, network application is becoming more and more complex, thus need to constantly updated network technology, which requires one to objective, in a reliable way of network planning and analysis. The network imitate really be output under this kind of ages background of a kind of new network programming and the design technique. It with it possess singly of method for the programming design of the network provide an objective and dependable fixed amount basis, shortening the network construction period, raising to make policy in the network construction of science, lower the investment risk of the network construction. But the OPNET conduct and actions the most typical network imitates true software currently with lent it the good maneuverability and strong function to imitate true realm to get an extensive application in the network. It is based on the structure of the Wireless Local Area Network modeling and simulation analysis in this paper, in the OPNET environment, building two comparable network model, collect to swallow to vomit quantity, load, delay to imitate true result of data, to IEEE 802.11 b/a/g agreements carries out comparative analysis. Key words: Emulation of the network; OPNET ; Wireless LAN; IEEE802.11; Reciprocity