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arXiv · 2506.01400

Unified Interference-Aware Water-Filling for QoS-Constrained Communication, Sensing, and JRC

Ahmed Naeem·Anastassia Gharib·Hüseyin Arslan
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Abstract

Water-filling (WF) algorithms are pivotal in maximizing capacity and spectral efficiency in multiple-input and multiple-output (MIMO) systems. However, traditional WF approaches cater solely to communication requirements, neglecting the emerging heterogeneity of 6G, including sensing and joint radar-communication (JRC). As these diverse demands grow in importance and have different Quality of Service (QoS) constraints, traditional WF becomes inadequate. Therefore, in this paper, we propose a unified interference-aware and QoS-constrained WF algorithm for systems with communication, sensing, and JRC. The proposed algorithm enables power allocation for multi-user MIMO systems, effectively addressing interference and balancing the support for heterogeneous user requirements.

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Ahmed Naeem, Anastassia Gharib, Hüseyin Arslan. 2025-06-02. Unified Interference-Aware Water-Filling for QoS-Constrained Communication, Sensing, and JRC. https://arxiv.org/abs/2506.01400

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