Knowledge Graph-Driven Cognitive SemCom Systems

Wireless networks have rapidly progressed from the first generation (1G) to contemporary fifth-generation deployments. These infrastructures are fundamentally rooted in Shannon’s information theory. Even with sophisticated channel coding techniques, e.g., low-density parity-check (LDPC) and polar codes, symbol-oriented links already operate close to the Shannon capacity and still fall short of beyond-5G requirements. Meanwhile, emerging ultra-wideband services—including online gaming, augmented reality (AR), and virtual reality (VR)—together with the explosive growth of mobile terminals, intensify the spectrum crunch. Consequently, disruptive paradigms that boost spectral efficiency are urgently needed.