This paper presents an in-band Full Duplex (FD) integrated sensing and communications system comprising a holographic Multiple-Input Multiple-Output (MIMO) base station, which is capable to simultaneously communicate with multiple users in the downlink direction, while sensing targets being randomly distributed within its coverage area. Considering near-field wireless operation at THz frequencies, the FD node adopts dynamic metasurface antenna panels for both transmission and reception, which consist of massive numbers of sub-wavelength-spaced metamaterials, enabling reduced cost and power consumption analog precoding and combining. We devise an optimization framework for the FD node's reconfigurable parameters with the dual objective of maximizing the targets' parameters estimation accuracy and the downlink communication performance. Our simulation results verify the integrated sensing and communications capability of the proposed FD holographic MIMO system, showcasing the interplays among its various design parameters.

翻译：本文提出了一种带内全双工通感一体化系统，该系统由全息多输入多输出基站构成，能够在下行链路方向与多个用户同时通信，同时感知覆盖区域内随机分布的目标。针对太赫兹频段的近场无线操作，全双工节点在收发两端均采用动态超表面天线面板，该面板由大量亚波长间距的超材料单元组成，可实现低成本和低功耗的模拟预编码与合并。我们构建了针对全双工节点可重构参数的优化框架，其双重目标为最大化目标参数估计精度与下行通信性能。仿真结果验证了所提全双工全息MIMO系统的通感一体化能力，并展示了各设计参数之间的相互作用关系。