摘要
在存在同信道干扰(CCI)的情况下,对空间频率块码(SFBC)和最大比率接收器组(MRRC)的性能分析进行比较,以用于长期演进(LTE)。分集发射方案的性能即下行链路中的SFBC,相对于接收机分集技术MRRC以及关于MIMO衰落信道上的单天线系统进行分析,而平均误码率代表着系统吞吐量。LTE信道模型就像是扩展车载信道和扩展典型城市信道,因为它们更倾向于CCI来评估不同多普勒频率的分集方案的性能。鉴于此,重点探究该方案的具体操作步骤,并完成了这个方案详细的原理解析和对应的模拟试验。
Comparison on performance analysis of SFBC(Space Frequency Block Codes)and MRRC(Maximum Ratio Receiver Combining)is done for LTE(Long Term Evolution)release 9 network in the presence of co-channel interference(CCI).The performance of transmit diversity scheme i.e.,SFBC in the downlink is analyzed with respect to the receiver diversity technique MRRC and also with respect to the single antenna system over MIMO fading channels.Average bit error rate is evaluated,so as to determine the system throughput.LTE channel models like extended vehicular channel and extended typical urban channels are considered as they are more prone to CCI for evaluating the performance of diversity schemes for different Doppler frequencies.For this reason,by taking advantage of this property,the feedback information can be compressed by using compressive sensing method.The concrete implementation method of this scheme is emphatically discussed,and a detailed theoretical analysis and simulation evaluation on this scheme also done.
作者
陈青
CHEN Qing(College of Communication&Information Engineering,Nanjing University of Posts&Telecommunications,Nanjing Jiangsu 210003,China)
出处
《通信技术》
2018年第9期2034-2039,共6页
Communications Technology
