LoS）被遮挡时候 ，1）的作用得以体现，这也是我个人认为RIS放在ISAC中比较有前景的一个方向，即解决非...
RIS-aided DFRC system 1）ISAC基站-RIS-Target-RIS-ISAC基站；2）ISAC基站-Target-ISAC基站；当ISAC基...
Simulation results demonstrate that the STAR-RIS aided ISAC system achieves a higher EE than conventional RIS scheme, and the location optimization for STAR-RIS can significantly improve the system EE. Furthermore, the EE declines rapidly when the radar beampattern gain threshold increases to a ...
Active RIS-Aided ISAC (Intelligent Surface-Assisted Communications) systems are a cutting-edge technology aimed at enhancing wireless communication performance. These systems leverage reconfigurable intelligent surfaces (RIS) to manipulate signal propagation environments actively. The simulation codes developed ...
[12]Yu Z. Active RIS Aided ISAC Systems: Beamforming Design and Performance Analysis[J]. IEEE Transactions on Communications, 2023. [13]Chen K, Qi C, Dobre O A, et al. Simultaneous Beam Training and Target Sensing in ISAC Systems with RIS[J]. IEEE Transactions on Wireless Communications,...
基于此,提出RIS辅助ISAC,通过联合设计基站的有源波束成形和RIS的反射相移,以最大化加权和速率与探测功率,并提出了基于加权均方最小误差和分数规划的交替算法来解决这一问题。仿真结果证明在ISAC中部署RIS并合理优化其相移可以有效提升通信和感知的性能。 【...
基于上述背景,本文研究了STAR-RIS辅助的ISCC系统,在满足计算时延要求和感知性能的前提下,提高MEC系统的能效。通过联合优化ISAC发射机的主动波束成形、STAR-RIS的被动波束成形和MEC的资源分配,最小化ISCC系统的能耗。 1 系统模型和问题建模 1.1 雷达感知模型
Joint Design for STAR-RIS Aided ISAC: Decoupling or Learning the dual-functional (DF) constant modulus waveform design for simultaneously transmitting and reconfigurable intelligent surface (STAR-RIS)-aided ISAC. To... J Zhang,S Gong,W Lu,... - 《IEEE Transactions on Wireless Communications》 ...
STAR-RIS辅助的ISAC下行系统如图1所示: 2 优化算法 3 MS模式和离散相移条件 4 数值仿真 本节进行数值仿真以验证所提出算法的有效性。AP天线数为8,STAR-RIS阵元数为30。采用莱斯信道模型。信道F可以表示为: μ0=10-3,α=2.2,d0=1。为莱斯因子。FNLos表示信道的NLOS部分,其元素服从复高斯分布均值为0,单位方...
随着RIS技术的不断发展,还有许多可能性有待探索,可以大大提高ISAC系统的性能。 引用 Asif Haider, M., Chowdhury, M. W. T., and Zhang, Y. D. (2022). “Sparse channel estimation for IRS-aided systems exploiting 2-D sparse arrays,” in Proc. IEEE sensor array and multich. Signal process. ...