摘要
差分空间调制(DSM)是一种多天线技术,通过在该技术中融合集分割策略,提出了基于集分割策略的差分空间调制算法。该算法引入冗余码设计,重新设计了DSM系统发射端的符号调制规则,实现了集合分割的操作,既保持了频谱效率的提升,又通过增强同一信息块内所有调制符号间的关联性,显著增强了编码增益。通过进一步设计天线激活矩阵,对在仅使用两根发射天线场景下的系统性能进行了优化。仿真结果表明:该算法相比于传统DSM系统,在相同的频谱效率下,展现出更低的误码率。
By integrating the set segmentation strategy in differential spatial modulation(DSM),a multiantenna technology,a differential spatial modulation algorithm based on the set partitioning strategy is proposed.This algorithm introduces redundant code design,redefines the symbol modulation rules at the DSM system's transmitter end,and implements set partitioning operations.This approach not only improves spectral efficiency but also significantly enhances coding gain by strengthening the correlation among all modulation symbols within the same information block.By further designing the antenna activation matrix,the system performance is optimized in the scenario where only two transmitting antennas are used.Simulation results show that the proposed algorithm,compared with the traditional DSM systems,exhibits a lower bit error rate under the same spectral efficiency.
作者
王婵飞
崔永艳
何继爱
许亚美
WANG Chanfei;CUI Yongyan;HE Jiai;XU Yamei(School of Computer and Communication,Lanzhou University of Technology,Lanzhou 730050,China)
出处
《电子科技大学学报》
北大核心
2025年第5期717-722,共6页
Journal of University of Electronic Science and Technology of China
基金
国家自然科学基金(62061024)
甘肃省科技厅项目(22ZD6GA055)。
关键词
空间调制
差分空间调制
集分割
编码增益
spatial modulation
differential spatial modulation
set partitioning
coding gain
作者简介
通信作者:王婵飞,博士,副教授,主要从事通信系统中的信号检测与处理方面的研究,E-mail:wangchanfei@163.com。
