速率自适应业务终端的设计与实现  

Design and Implementation of Rate Adaptation Service Terminal

作　　者：郜金刚[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2009年第11期55-57,共3页Radio Engineering

摘　　要：介绍了慢衰落自适应散射系统中自适应技术的基本思想,讨论了一种速率自适应业务终端的设计思路,给出了该系统的硬件设计实现方案。速率自适应技术是一种链路自适应方法,分析信道质量状况选择最佳的数据发送速率,对于支持多种速率传输的无线系统来说,采用速率自适应后能够在很好地保证服务质量的同时有效地增大吞吐量,提高无线链路的利用率,更好地利用变参信道的有限带宽。In this paper, the basic thought of rate adaptation technology in slow fading adaptation scatter communication system is introduced, and the design method of rate adaptation service terminal is discussed and the hardware implementation design plan is presented. The rate adaptation technology is a method of physical link adaptation, which chooses the most appropriate rate according to the analysis of channel quality. For supporting muhi-rate wireless transmission system, the use rate adaptation technology can guarantee service quality and increase throughput at the same time, which can improve the utilization ratio of wireless links and effectively use the limited bandwidth of variable parameter channel.

关 键 词：速率自适应 介质无关接口MII 信噪比 语音网关 局域网 

分 类 号：TN926.5[电子电信—通信与信息系统]