摘要
利用导频插入对瑞利衰落信道进行估计,运用正交空时分组编码和最大似然解码,仿真结果显示:插入导频后的误比特率曲线比没有插入导频的误比特率曲线性能有所提高,随着导频数目的增加,系统的误比特率有所下降。估算方法有效提高了信道估算性能,且运算量增加不大。
Using inserting pilots into frames, Orthogonal Space-Time Block Coding and maximum likelihood decoding, the estimation of Rayleigh fading channels is proposed, the simulation result shows that using inserting pilots provides remarkable performance, if the number of pilots is increased, BER is reduced. The estimation demonstrates that the increase of channel estimation performance can be achieved with little added complexity.
出处
《自动化与仪器仪表》
2014年第7期187-189,共3页
Automation & Instrumentation
基金
甘肃省科技支撑项目(1104GKCA032)
甘肃省高校科研项目(2013B-098)
关键词
多输入多输出
多径信道
正交空时分组编码
无线通信
MIMO
multipath channels
OSTBC（Orthogonal Space-Time Block Coding）
Wireless com-munication
