Jamming-Aware User Association for LEO Constellations via Batch Pruning
作者：马坚峰 时间：2026年10月01日 13:37 点击数：
语言：English
发表刊物：IEEE Transactions on Vehicular Technology
发表日期：2026年8月12日
摘要：
In hostile uplink environments, low Earth orbit (LEO) constellations are vulnerable to malicious jamming and multi-user interference, making user-satellite association critical for reliable access. In this paper, we propose a low-complexity jamming-aware user association scheme for system sum rate maximization under satellite capacity constraints. To support low-overhead link evaluation, a pilot-free orthogonal subspace projection (OSP) candidate scoring metric is developed using deterministic line-of-sight channel information and estimated jamming statistics. Based on the precomputed OSP quantities, a virtual candidate retention and load-aware batch-pruning mechanism is proposed to keep multiple visible satellite choices active, iteratively update virtual rates, and remove weak links in batches. After the association is finalized, a standard minimum mean square error (MMSE) combiner is applied for receive processing. Simulation results show that the proposed method achieves system sum rate performance close to that of exhaustive search in small-scale cases and outperforms search-based benchmarks with substantially lower execution time.
原文链接
