Cross-layer design proposals for wireless mobile networks: A survey and taxonomy

TLDR

Third‑generation and newer mobile systems must support Internet interoperability, higher throughput, and multimedia, but traditional layered architectures cannot fully exploit wireless characteristics, prompting cross‑layer design solutions. The article aims to present and discuss major cross‑layer design solutions, examine their implementations, identify open technical challenges, and outline future research directions. The authors review cross‑layer design solutions, analyze functional entities and signaling in implementations, and evaluate the resulting architectural complexity and communication overhead. They summarize the cross‑layer approaches developed to date and propose directions for future work.

Abstract

Third-generation (3G) and beyond 3G mobile communication systems must provide interoperability with the Internet, increase throughput for mobile devices, and optimize their operation for multimedia applications. The limited ability of traditional layered architectures to exploit the unique nature of wireless communication has fostered the introduction of cross-layer design solutions that allow optimized operation for mobile devices in the modern heterogeneous wireless environment. In this article we present the major cross-layer design solutions that handle such problems, and discuss cross-layer implementations with a focus on functional entities that support cross-layer processes and the respective signaling. In addition, we consider the associated architectural complexity and communication overhead they introduce. Furthermore, we point out the major open technical challenges in the cross-layer design research area. Finally, we conclude our article with a summary of cross-layer approaches developed thus far and provide directions for future work.