【作者】 张振生；

【导师】 裴昌幸；

【作者基本信息】 西安电子科技大学 ， 通信与信息系统， 2002， 硕士

【摘要】 本文介绍了家庭网络的概念以及目前国内外的发展现状，阐述了发展家庭网络的必要性和迫切性。从家庭组网的特殊性要求出发，综合比较了目前存在的各种家庭联网技术，得出结论一无线联网将是未来家庭网络的发展趋势，研究了作为家庭网络的关键设备一家庭网关的概念、功能和组成结构，提出了一种集宽带接入ADSL Modem、无线局域网接入点AP和以太网接口于一体的家庭网关方案，并重点研究了其中的无线局域网技术。对无线局域网的物理层传输技术OFDM做了研究，着重分析了在室内多径信道环境下OFDM系统的抗干扰性能，对其均衡技术做了仿真，比较了两种均衡方法对性能的改善。最后利用OPNET网络仿真软件建立了协议模型，对该方案进行了仿真实现。更多还原

【Abstract】 This paper deals with the concept of Home Network and its development in the world, describes the necessity and imminence of developing the Home network. In this papers the speciality of home network is analyzed and some kinds of networking technique available is compared, which results in the conclusion that wireless is the trend of home networking. Home gateway, which is the key device in home network is discussed with the emphasis on its definition.~ function and construction. Then a new home gateway which consists of Ethernet. WLAN(Wireless local area network) and ADSL (Asymmetric Digital Subscriber Line) is presented and WLAN technology is studied in detail. In addition, The principle and characteristic of OFDM (Orthogonal Frequency Division Multiplexing) which is an optional PHY transmission scheme in high data rate WLAN is investigated and the performance of OFDM in the indoor multipath fading channels is analyzed. Equalization is an effective technique to reduce the interference brought by multipath and two kinds of equalizers are simulated to compare their improvement in BER performance. Finally, the Home gateway is constructed and simulated with OPNET.更多还原