无线数字家庭网络泛在接入技术

数字家庭网络是通信领域的一个重要分支，近年来发展非常迅速。基于电信网络的数字家庭网络体系结构在中国已经标准化，但就接入方式而言，只是定义了可以使用无线方式，如何组建无线数字家庭网络是未来研究的重点。文章提出了无线数字家庭网络泛在接入概念，给出了无线泛在接入网络体系结构，并就其中的关键技术进行了探讨，包括感知无线电、无线网状网（Mesh）网络理论、通用接入点链路转换机制、业务的QoS保障机制以及电磁兼容和异构系统共存机制等。

Ubiquitous Access Technology for Wireless Digital Home Networks

Digital home networks, an important communications branch, have been developing rapidly in recent years. Digital home network architecture based on telecommunication networks has been standardized in China. However, only the wireless access mode has been defined for access to digital home networks. How to establish wireless digital home networks is a research focus in the future. This paper proposes the concept of ubiquitous access to wireless digital home networks, and presents architecture of the wireless ubiquitous access network. Moreover, it analyzes the key techniques for implementing wireless ubiquitous access, including cognitive radio, wireless mesh, link transfer mechanism of generic access points, QoS guarantee mechanism, and Electromagnic Compatibility (EMC) and co-existence of heterogeneous systems.