论文标题
安全的多用户下行链路误差furllc系统的资源分配
Resource Allocation for Secure Multi-User Downlink MISO-URLLC Systems
论文作者
论文摘要
在本文中，我们研究了用于安全多用户下行链路超可靠的低潜伏期通信（URLLC）的资源分配算法设计。为了提高物理层安全性（PLS），BS配备了多个天线，并且由BS注入人造噪声（AN），以损害EavesDroppers的通道。为了满足安全URLLC系统中严格的延迟要求，采用了简短的数据包传输（SPT）并考虑资源分配设计。资源分配算法设计被提出为最大化总发射功率的优化问题，同时保证了有关URLLC用户的传输位数量，数据包错误概率，信息泄漏和延迟的服务质量（QOS）约束。由于优化问题的非转化性，找到全局解决方案需要高度的计算复杂性。因此，我们提出了一种基于低复杂算法的连续凸近似（SCA），以找到亚最佳溶液。我们的仿真结果表明，提出的资源分配算法设计确保了URLLC用户传输的保密性，并且与基线方案相比可节省大量功率。
In this paper, we study resource allocation algorithm design for secure multi-user downlink ultra-reliable low latency communication (URLLC). To enhance physical layer security (PLS), the base station (BS) is equipped with multiple antennas and artificial noise (AN) is injected by the BS to impair the eavesdroppers' channels. To meet the stringent delay requirements in secure URLLC systems, short packet transmission (SPT) is adopted and taken into consideration for resource allocation design. The resource allocation algorithm design is formulated as an optimization problem for minimization of the total transmit power, while guaranteeing quality-of-service (QoS) constraints regarding the URLLC users' number of transmitted bits, packet error probability, information leakage, and delay. Due to the non-convexity of the optimization problem, finding a global solution entails a high computational complexity. Thus, we propose a low-complexity algorithm based successive convex approximation (SCA) to find a sub-optimal solution. Our simulation results show that the proposed resource allocation algorithm design ensures the secrecy of the URLLC users' transmissions, and yields significant power savings compared to a baseline scheme.
