Rate-Splitting Multiple Access for Semantic-Aware Networks: an Age of Incorrect Information Perspective
Abstract: In this letter, we design a downlink multi-user communication framework based on Rate-Splitting Multiple Access (RSMA) for semantic-aware networks. First, we formulate an optimization problem to obtain the optimal user scheduling, precoding, and power allocation schemes jointly. We consider the metric Age of Incorrect Information (AoII) in the objective function of the formulated problem to maximize the freshness of the overall information to be transmitted. Using big-M and Successive Convex Approximation (SCA) methods, we convert the resulting non-convex problem with conditional objective and constraints into a convex one and propose an iterative algorithm to solve it. By numerical results, we show that RSMA achieves a lower AoII than SDMA owing to its superior performance under multi-user interference.
- O. Dizdar, Y. Mao, W. Han and B. Clerckx, “Rate-splitting multiple access: a new frontier for the PHY layer of 6G,” Proc. IEEE 92nd Vehic. Tech. Conf. (VTC2020-Fall), Victoria, BC, Canada, 2020, pp.1-7.
- A. Mishra, Y. Mao, O. Dizdar and B. Clerckx, “Rate-splitting multiple access for 6G—part I: principles, applications and future works,” IEEE Commun. Lett., vol. 26, no. 10, pp. 2232-2236, Oct. 2022.
- O. Dizdar, Y. Mao and B. Clerckx, “Rate-splitting multiple access to mitigate the curse of mobility in (massive) MIMO networks,” IEEE Trans. Commun., vol. 69, no. 10, pp. 6765-6780, Oct. 2021.
- A. Mishra, Y. Mao, O. Dizdar and B. Clerckx, “Rate-splitting multiple access for downlink multiuser MIMO: precoder optimization and PHY-layer design,” IEEE Trans. Commun., vol. 70, no. 2, pp. 874-890, 2022.
- W. Weaver, “Recent Contributions to the Mathematical Theory of Communication,” The Mathematical Theory of Communication, 1949.
- A. Maatouk, M. Assaad and A. Ephremides, “The age of incorrect information: an enabler of semantics-empowered communication,” IEEE Trans. Wireless Commun., vol. 22, no. 4, pp. 2621-2635, April 2023.
- T. M. Getu, G. Kaddoum and M. Bennis, “Making sense of meaning: a survey on metrics for semantic and goal-oriented communication,” IEEE Access, vol. 11, pp. 45456-45492, 2023.
- Z. Yang, M. Chen, Z. Zhang, C. Huang, “Energy efficient semantic communication over wireless networks with rate splitting,” arXiv preprint, arXiv:2301.01987, 2023.
- S. Akyurek, “Age aware power allocation for energy-efficient wireless networks using RSMA,” M.Sc. thesis, Bilkent University, Ankara, Turkey, 2023.
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.