Effective Communications for 6G: Challenges and Opportunities
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This article studies effective communication, one of the three forms identified by Weaver and Shannon, as an enabler for the upcoming 6G use cases. The envisioned tactile, holographic, and multi-sensory communications require bandwidths in the order of terabits per second and latencies in the order of microseconds for an immersive experience. We argue that a theoretical framework for transporting information tailored to end-users' goals is necessary to support such applications. Different from the recently emerging discussions focusing on the meaning of exchanged messages, we focus on using these messages to take actions in the desired way. We highlight the essential characteristics of distributed knowledge accumulation as a facilitator for this upcoming paradigm, and discuss the challenges of making effective communications a reality and the potential opportunities for future research to address these challenges. In a real-life use case, we showcase the potential reduction in the number of bits transferred owing to the transferred accumulated knowledge.
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