Exploring Cross-Layer Techniques for Security: Challenges and Opportunities

Abstract In this paper, we discuss the challenges and opportunities of using cross-layer techniques for enhancing wireless network security. Cross-layer approach has gained considerable interest in performance optimization due to their design advantages. While the architectural modi-cation introduced by the inter-layer interactions show promising results on overall network performance, there is also a growing concern on their limitations. Here, we investigate the impact of cross-layer techniques on security and network performance. An in depth understanding of the strength and weakness of cross-layer methods is necessary in designing robust architectures. To this end, we evaluate different cross-layer architectures and analyze their efciency in intrusion detection systems. 1 I