# Multi-User Opportunistic Spectrum Access for Cognitive Radio Networks Based on Multi-Head Self-Attention and Multi-Agent Deep Reinforcement Learning

> Research article (Sensors, 2025) · cited 14× · AI/ML

**Wikidata**: [openalex:W4408777403](https://www.wikidata.org/wiki/openalex:W4408777403)  
**Source**: https://4ort.xyz/entity/multi-user-opportunistic-spectrum-access-for-cognitive-radio-networks-based-on-multi-head-self-attention-and-multi-agent