Multi-Input Multi-Output antennas based Orthogonal Frequency-Division Multiplexing （MIMO-OFDM） has been chosen as the air interface technology for China＇s beyond 3G Time-Division Duplex （TDD） mobile system in the...Multi-Input Multi-Output antennas based Orthogonal Frequency-Division Multiplexing （MIMO-OFDM） has been chosen as the air interface technology for China＇s beyond 3G Time-Division Duplex （TDD） mobile system in the FUTURE research project. Channel estimation plays a key role on the performance of the MIMO-OFDM receiver. In this paper, we present five channel estimation algorithms and study their performance in a simulated beyond 3G TDD mobile system, Simulation results show that the adaptive 2D-LMS algorithm we proposed recently has the best performance when the signal to noise ratio is lower than 8 dB.展开更多
B 3G移动通信系统可提供高达100Mbit/s的速度,MIMO-OFDM作为B 3G的核心技术,同步问题一直是该系统的关键问题.介绍了正交频分复用技术(OFDM),多输入多输出系统(MIMO)技术的原理,分析MIMO-OFDM系统中存在的同步问题,总结MIMO-OFDM系统的...B 3G移动通信系统可提供高达100Mbit/s的速度,MIMO-OFDM作为B 3G的核心技术,同步问题一直是该系统的关键问题.介绍了正交频分复用技术(OFDM),多输入多输出系统(MIMO)技术的原理,分析MIMO-OFDM系统中存在的同步问题,总结MIMO-OFDM系统的同步方法.展开更多
基金This workis supported by China National"863"Project (2003AA12331004) , National Natural Science Foundation of China (60472070) .
文摘Multi-Input Multi-Output antennas based Orthogonal Frequency-Division Multiplexing （MIMO-OFDM） has been chosen as the air interface technology for China＇s beyond 3G Time-Division Duplex （TDD） mobile system in the FUTURE research project. Channel estimation plays a key role on the performance of the MIMO-OFDM receiver. In this paper, we present five channel estimation algorithms and study their performance in a simulated beyond 3G TDD mobile system, Simulation results show that the adaptive 2D-LMS algorithm we proposed recently has the best performance when the signal to noise ratio is lower than 8 dB.
