论文标题
双面信息协助暂时相关的大规模访问
Double-Sided Information Aided Temporal-Correlated Massive Access
论文作者
论文摘要
该字母考虑了时间相关的大规模访问，其中每台设备一旦激活，都可能会在几个连续的帧上连续发送。我们在每个帧处的设备活动不仅与其上一个帧有关，而且还与下一个帧相关联，我们提出了一个双面信息（DSI）辅助关节活动检测和基于近似消息传递（AMP）框架的关节活动检测和通道估计算法。 DSI是从包含目标检测框架及其上一个和下一帧的滑动窗口中提取的。所提出的算法表现出优于最先进方法的性能。
This letter considers temporal-correlated massive access, where each device, once activated, is likely to transmit continuously over several consecutive frames. Motivated by that the device activity at each frame is correlated to not only its previous frame but also its next frame, we propose a double-sided information (DSI) aided joint activity detection and channel estimation algorithm based on the approximate message passing (AMP) framework. The DSI is extracted from the estimation results in a sliding window that contains the target detection frame and its previous and next frames. The proposed algorithm demonstrates superior performance over the state-of-the-art methods.
