频率选择性衰落信道中不可靠回传信道的发射机选择
Transmitter Selection for Secrecy in a Frequency Selective Fading Channel with Unreliable Backhaul
摘要：
在本文中，被认为是使用单载波与循环前缀调制频率选择性信道的通信网络中，接入点提供连接到一个合法的目的地，通过多个发射机与不可靠的回程链路中存在的窃听。一个次优和一个最优的发射机选择方案，提出了提高系统的保密性，这取决于是否有效的回程信道知识是先验或没有。秘密中断概率（SOP）和它的渐近极限的封闭形式。这提供了关于活动回程链路的知识如何影响网络的保密性能的一些见解。我们的研究结果表明，最优发射机选择方案获得了更大的好处比次优方案从活跃的回程链路的知识，从而显着提高系统性能，但是，次优发射机选择方案可以降低复杂度和反馈开销。
英文摘要：
In this paper, a communication network using single carrier with cyclic prefix modulation over frequency selective channels is considered, where an access point provides connectivity to a legitimate destination through multiple transmitters with unreliable backhaul links in the presence of an eavesdropper. A sub-optimal and an optimal transmitter selection scheme are proposed to improve the secrecy of the system, depending on whether the active backhaul channel knowledge is available a priori or not. The secrecy outage probability (SOP) and its asymptotic limit are presented in closed-form. This provides some insights regarding how knowledge of the active backhaul links affects the secrecy performance of the network. Our results show that the optimal transmitter selection scheme obtains a larger benefit than the sub-optimal scheme from the knowledge of the active backhaul links, resulting in a significantly improved system performance; however, the sub-optimal transmitter selection scheme can reduce the complexity and feedback overhead.
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。
