摘要
本文主要目的是研究空间频率分集MIMO-OFDM系统的各类译码算法的优劣和使用场合。提出了一种能充分利用空间分集、空间复用、频率复用增益,且能对抗时间选择性和频率选择性衰落的空时频率分集MIMO-OFDM系统,完整介绍了应用于该系统的三类算法:线性检测算法、非线性检测算法以及准最大似然检测算法。其中线性检测算法每一类算法均作了较详细的定义、原理介绍以及算法复杂度、性能的分析,并给出了算法的建议应用场合。最后系统仿真证实了上述分析和结论。
A spatial frequency diversity MIMO-OFDM system which fully uses spatial diversity, spatial multiplexing and frequency multiplexing gain and can countermeasure the fading of time selective and frequency selective is presented. Three categories of algorithms linear algorithms, nonlinear algorithms and quasi-maximum likelihood detection algorithms are integrally introduced. The conception, basic principle and the comparison of comPlexity and performance of every algorithm are specifically discussed. Simulation results verified all the analysis and conclusions.
出处
《电子测量技术》
2007年第9期1-4,共4页
Electronic Measurement Technology
基金
国家自然科学基金资助项目(90204001)
