论文部分内容阅读
IEEE802.16作为下一代网络中一种重要的宽带无线城域网接入标准,是最具有发展潜力的接入技术之一。它的系统容量大,能够支持多种业务的高速传输。为了在质量不稳定的无线信道上传输时能够保证不同业务的服务质量(QoS)要求,提高系统性能,系统广泛采用多种自适应技术。文中介绍了自适应技术的原理,重点讨论了几项关键的自适应技术,并对每一种技术给出了最新的研究成果。
As an important broadband wireless MAN access standard in next generation networks, IEEE802.16 is one of the most promising access technologies. Its large system capacity, to support a variety of business high-speed transmission. In order to guarantee quality of service (QoS) requirements for different services and improve system performance when transmitting on unstable quality radio channels, a wide range of adaptive technologies are widely used in the system. This paper introduces the principle of adaptive technology, focuses on several key adaptive technologies, and gives the latest research results for each technology.