无线MIMO-OFDM通信系统原理及其关键技术  

Principle and key techniques of MIMO-OFDM system for wireless communication

作　　者：石鑫[1] 李昊[2] 

机构地区：[1]海军装备部,西安710043 [2]西北工业大学航海学院,西安710072

出　　处：《国外电子测量技术》2010年第2期32-35,共4页Foreign Electronic Measurement Technology

摘　　要：MIMO-OFDM将OFDM技术与MIMO技术结合起来,在不增加带宽与功率的前提下,可以增加数据的传输数率,被视为下一代高速无线通信的核心技术。文章介绍了无线通信系统中的MIMO-OFDM技术,阐述了MIMO-OFDM系统的基本原理与特点,并就系统模型作了理论推导,详细说明了MIMO-OFDM通信系统的关键技术:编解码技术、同步技术和信道估计技术。Combing the advantages of MIMO and OFDM technologies, MIMO-OFDM can significantly increases the data throughput without increasing the transmission power and enlarging the bandwidth, to OFDM technology and MIMO technology, combining without increasing the bandwidth and power of the premise, and is considered the next generation of high-speed wireless communication core technology. It＇s to present the basic principles and characteristics of MIMO- OFDM technology for applying in underwater acoustic communication system, and included to theoretical derivation of the system model, and to display the detailed description for key techniques of underwater acoustic MIMO-OFDM communication system： codec technology, synchronization technology and channel estimation technology.

关 键 词：MIMO-OFDM 空时编码 同步 信道估计 

分 类 号：TN914[电子电信—通信与信息系统]