摘要
根据LTE上行SIMO接收机特点,对MMSE-RISIC均衡器进行简化修改,得到MMSE-FDE均衡器。该均衡器所有步骤全在频域进行,大大降低了均衡算法的复杂度。将该均衡器进行计算机仿真,其结果表明,该均衡器在3GPP LTE协议最常用的EPA和EVA信道中应用,能比较有效地消除MMSE均衡残留的码间干扰,使系统性能明显提高。
According to the characteristics of LTE uplink SIMO receiver, the MMSE- RISIC equalizer is simplified and the MMSE- FDE equalizer is gained. All steps of this equalizer perform in frequency domain, the complexity of algorithm decrease sharply. Through simulation in computer, the result shows that MMSE- FDE equalizer removes some the inter - symbol - interference（ISI） introduced by the MMSE equalizer in EPA and EVA channel which are the common channels in 3GPP LTE protocol, and the ability of the system is improved obviously.
出处
《现代电子技术》
2010年第1期40-42,共3页
Modern Electronics Technique
基金
大唐爱立信联合LTE研究中心合作项目(60100028)
