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未来移动通信系统及其关键技术 被引量:31

Future Mobile Communication System and Its Key Technologies
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摘要 文中介绍了未来移动通信系统的特点和网络架构。讨论了未来移动通信物理层的正交频分复用技术(OFDM)、多入多出系统(MIMO)、认知无线电技术、软件无线电技术以及自适应调制与编码技术等传输的关键技术以及相应的网络结构和协议。最后对未来移动通信系统的发展进行了一定的展望,即未来移动通信系统应该具有高数据率、高频谱利用率、低发射功率、灵活业务支撑能力等特点。 The features and network structure of future mobile communications are described. Key technologies of physical layer in future mobile communications networks such as OFDM, MIMO, CR (Cognitive Radio), SDR (Software Defined Radio) and corresponding network protocols are discussed. Finally, the future development of mobile communications is forecasted. The future mobile communication system should have high data rate, high spectrum frequency efficiency, low transmit power and flexible services, etc.
作者 王军选
出处 《通信技术》 2009年第9期142-144,147,共4页 Communications Technology
关键词 移动通信 物理层关键技术 网络结构 mobile communications key technologies of physical layer network structure
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