LTE-Advanced中OFDM技术的研究进展  

Development Progress of OFDM Technology for LTE-Advanced System

作　　者：丁市召[1] 张祖凡[1] 

机构地区：[1]重庆邮电大学,重庆400065

出　　处：《电讯技术》2010年第4期112-116,共5页Telecommunication Engineering

基　　金：国家科技重大专项资助项目(2009ZX03003-006-01&2009ZX03001-004-02);重庆市科技攻关计划项目(CSTC;2010AC2143);重庆市教育委员会科学技术研究项目(KJ080516)~~

摘　　要：OFDM技术以其频谱利用率高、抗多径衰落、频谱资源灵活分配等优势,成为新一代移动通信中的关键技术。介绍了LTE-A中关键技术OFDM的发展形势,并对OFDM与其它多址技术、MI-MO技术相结合在LTE-A中的发展及其BR-OFDMA技术优化进行了分析。基于此分析结果,提出了下一步的研究发展方向。OFDM has become a key technology forits high spectrum efficiency, anti-multipath fading ability, the flexibility in the allocation of spectrum resources and other advantages in modem mobile communication. This paper introduces the current situation of LTE - A key technology, or OFDM, makes the following analysis of OFDM in the development of LTE - A： the combining with multiple access technology, MIMO technology, and Block Repeat-OFDM Aceess（BR- OFDMA）. According to the analysed result, it points out the developing trend of OFDM technology.

关 键 词：多输入多输出 正交频分复用 频谱利用率 块重复-OFDMA 

分 类 号：TN92[电子电信—通信与信息系统]