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标题: Understanding Relay Performance Metrics in Modern Communication Networks Relay nodes have become an essential component in modern communication networks, playing a crucial role in enhancing signal coverage, improving network reliability, and optimizing data transmission. Evaluating the effectiveness of these relay nodes requires a comprehensive understanding of relay performance metrics, which provide quantitative insights into the functionality and efficiency of relays. These metrics help network engineers design better systems, identify bottlenecks, and ensure seamless communication across different environments.