消息反馈干扰消除辅助的UAMP迭代检测器用于OTFS系统
Message Feedback Interference Cancellation Aided UAMP Iterative Detector for OTFS Systems
AI总结：
针对高速移动场景下OTFS系统信号检测难题，提出利用变量节点最新反馈消息进行干扰消除的UAMP-MFIC迭代检测器，并采用快速递归方案控制复杂度，同时开发双向符号检测结构以缓解错误传播，仿真证明其性能优于现有检测器。
摘要：
在高速移动场景下，为正交时频空间（OTFS）系统设计高效的信号检测器既重要又具挑战性。本文提出一种高效的、由消息反馈干扰消除辅助的酉近似消息传递（记为UAMP-MFIC）迭代检测器，其中利用来自变量节点的最新反馈消息进行更可靠的干扰消除和性能提升。所提出的UAMP-MFIC检测器采用快速递归方案，以防止复杂度增加。为进一步缓解错误传播并提升接收机性能，我们还开发了双向符号检测结构，提出Turbo UAMP-MFIC检测器和迭代加权UAMP-MFIC检测器，以高效融合前向和后向UAMP-MFIC检测器的估计结果。最后给出仿真结果，证明了我们提出的检测器相比现有检测器的性能提升。
英文摘要：
The designing of efficient signal detectors is important and yet challenge for orthogonal time frequency space (OTFS) systems in high-mobility scenarios. In this letter, we develop an efficient message feedback interference cancellation aided unitary approximate message passing (denoted as UAMPMFIC) iterative detector, where the latest feedback messages from variable nodes are utilized for more reliable interference cancellation and performance improvement. A fast recursive scheme is leveraged in the proposed UAMP-MFIC detector to prevent complexity increasing. To further alleviate the error-propagation and improve the receiver performance, we also develop the bidirectional symbol detection structures, where Turbo UAMP-MFIC detector and iterative weight UAMP-MFIC detector are proposed to efficiently fuse the estimation results of forward and backward UAMP-MFIC detectors. The simulation results are finally provided to demonstrate performance improvement of our proposed detectors over existing detectors.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
