WiMAX系统的载波聚合技术  

Carrier Aggregation Technology in Wi MAX System

作　　者：许元斌[1,2] 

机构地区：[1]国网电力科学研究院 [2]国网信通亿力科技有限责任公司,福建福州350003

出　　处：《数字技术与应用》2014年第9期21-23,共3页Digital Technology & Application

基　　金：国家电网公司科技项目"提高用电营销管理与服务水平的智能用电技术"(项目编号:524600120043)成果之一

摘　　要：采用正交频分复用技术的WiMAX系统,能够显著提高频谱利用率。为了支持更高的数据速率,需要扩展传输带宽。载波聚合技术通过将多个成员载波连接在一起,能够提供更大的传输带宽。本文针对230 MHz的WiMAX系统,在对频谱使用情况进行测试的基础上,采用连续载波聚合方法,扩展传输带宽。相比离散载波聚合方法,连续载波聚合方法具有更低的系统复杂度,便于实际应用。Spectrum efficiency can be significantly improved by using orthogonal frequency division multiplexing technology in WiMAX system. In order to support a higher data rate, transmission bandwidth needs to be extended. Multiple component carriers are connected together by adopting carrier aggregation technology, which can provide wider transmission bandwidth. In this paper, on the basis of testing result on spectrum utilization, continuous carrier aggregation method is used to broaden the transmission bandwidth in 230 MHz WiMAX system. Compared with discrete carrier aggregation method, continuous carrier aggregation method has a lower systematic complexity, which is convenient for application.

关 键 词：WIMAX 正交频分复用 载波聚合 

分 类 号：TN929.5[电子电信—通信与信息系统]