Cognitive Adaptation of Communications Systems and Networks for Situation-Aware Wireless Security Enhancement

随着宽带通信基础设施和服务的无处不在的部署，无线通信面临着许多新的挑战，其中突出的就是无线安全问题。无线通信的独特安全挑战主要是由于无线电信号传播的开放性和广播性。虽然大多数无线安全风险来自于开放的空中接口，但通常部署在通信网络协议的较高层的传统无线安全机制不足以应对物理层无线电传播环境的特定脆弱性。此外，在高度标准化的无线网络中，缺乏情景感知安全风险评估和安全配置解决方案的适应性，会带来额外的安全风险。因此，这些综合因素不可避免地导致了脆弱的无线技术和基础设施，由于安全机制的无效，存在广泛的安全漏洞。

With the ubiquitous deployment of broadband communications infrastructure and services, wireless communications is facing many emerging challenges including prominently the issue of wireless security. The unique security challenge of wireless communications is due mainly to the open and broadcast nature of radio signal propagation. While most of the wireless security risks are from the open air interface, conventional wireless security mechanisms, typically deployed at the higher layers of communications network protocol, are inadequate in addressing the specific vulnerability of radio propagation environment at physical layer. Furthermore, lacking of situational-aware security risk assessment and adaptation in security provisioning solutions in highly standardized wireless networks introduce additional security risks. As a result, these combined factors inevitably lead to vulnerable wireless technologies and infrastructures with widespread security weaknesses due to the ineffective security mechanisms.