摘要
基于线性星座图预编码提出了一种可以使准正交分组空频时编码获得满频率分集增益的多天线发射方案.该方案将线性星座图预编码和准正交分组空频时编码级联,从而使基于准正交设计的空频时编码获得满频率和空间分集增益.给出了成对错误概率的理论分析和误码率的仿真结果,可以看出,这种方法与传统方法相比至少有大约1 dB的增益.
Based on LCP（Linear Constellation Precoding）,a novel multi-antenna transmit scheme is proposed to make the quasi orthogonal group SFTBC obtain full frequency diversity.In the scheme,LCP and quasi orthogonal group SFTBC are cascaded,thus making SFTBC based on quasi-orthogonal design obtain full frequency diversity and space diversity.Both theoretical analysis of pair-wise error probability and BER simulation results are given.Simulation results show that the proposed scheme has a performance gain of at least 1dB compared to traditional ones.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2011年第6期134-139,共6页
Journal of Xidian University
基金
2010年科技部科研院所基金资助项目(2010EG126237)
西安邮电学院中青年教师科研基金资助项目(0001284)
关键词
线性星座图预编码
分组空频时编码
正交频分复用
频率分集
linear constellation precoding
group space-frequency-time block code
orthogonal frequency division multiplexing
frequency diversity
