Delayed Csi(延迟 Csi)研究综述
Delayed Csi 延迟 Csi - Next, we extended this model to the Gaussian MISO two receiver channel with an external eavesdropper, under the assumption that the state of the channel which is available to each receiver is conveyed either perfectly (P) or with delay (D) to the transmitter equal fractions of time, while only delayed CSI is available from the eavesdropper to the transmitter. [1] In particular, we propose a transmission scheme, which can be regarded as a generalization of the state-of-the-art scheme without security and with delayed CSIT. [2] This is a hybrid CSI at the transmitter (CSIT) setting where the transmitter has the delayed CSI of one user but not the other. [3] However, for the three-user MIMO broadcast channel with delayed CSIT and arbitrary antenna configurations, the DoF region of order-2 messages is still unclear and only a partial achievable DoF region of order-1 messages is obtained, where the order-2 messages and order-1 messages are desired by two receivers and one receiver, respectively. [4] The DoF of the proposed scheme with M = N = K is strictly better than the best known DoF for the K-user X channel with delayed CSIT. [5] In this paper, we propose an achievable SDoF for MIMO interference channel with confidential messages and delayed CSIT by designing a multi-phase achievable scheme. [6] In the next phase, each transmitter uses the delayed CSIT of the previous phase and sends a function of the net interference and artificial noises (generated in previous phase), which is simultaneously useful for all receivers. [7] This is a "DN" hybrid CSI at the transmitter (CSIT) setting where the transmitter has the delayed CSI of one user but not the other. [8] The following cases are considered: unknown CSI, perfect CSI, erroneous CSI, and delayed CSI. [9] During different time slots, the channel state information at transmitters (CSIT) alternate between three states including perfect CSIT, delayed CSIT, and no CSIT. [10]接下来，我们将此模型扩展到具有外部窃听器的高斯 MISO 两个接收器通道，假设每个接收器可用的通道状态要么完美（P）要么延迟（D）传送到发射器等于时间的一小部分，而从窃听者到发射机的只有延迟的 CSI。 [1] 特别是，我们提出了一种传输方案，它可以被看作是没有安全性和延迟 CSIT 的最先进方案的推广。 [2] 这是发送器 (CSIT) 设置下的混合 CSI，其中发送器具有一个用户的延迟 CSI，但没有另一个用户。 [3] 然而，对于具有延迟 CSIT 和任意天线配置的三用户 MIMO 广播信道，2 阶消息的自由度区域仍然不清楚，仅获得了 1 阶消息的部分可实现的自由度区域，其中 2 阶消息两个接收者和一个接收者分别需要和 order-1 消息。 [4] nan [5] nan [6] nan [7] nan [8] nan [9] nan [10]