面向关键性感知无线网络的敏捷韧性事件驱动框架
Event-Based Framework for Agile Resilience in Criticality-Aware Wireless Networks
AI总结：
本文提出事件驱动多阶段韧性框架，集成MC-RSMA等机制，应对无线网络随机阻塞，平衡效率与成本，实现跨中断状态的可靠传输。
摘要：
随着任务关键型和安全性关键型无线应用在复杂性和多样性上的不断增长，下一代无线系统必须满足日益严格和多方面的要求。这些系统需要韧性，同时增强智能性和适应性，以确保在各种条件下的可靠通信。本文提出了一种事件驱动的多阶段韧性框架，用于在无线网络中系统地整合互补的纠错技术。该框架应用于随机链路阻塞下的混合关键性数据上行传输。一个关键组成部分是一种新颖的混合关键性速率分割多址（MC-RSMA）方案，该方案结合了多连接和单连接，以平衡速率和阻塞鲁棒性。MC-RSMA辅以单侧接入点协作和集中解码，并集成到一个事件驱动算法中。在此，日益有效但更复杂的机制被顺序激活，以系统地对抗阻塞，同时平衡韧性与成本。从跨层角度来看，提出了两个发射功率分配问题：一个用于独立解码，另一个用于集中解码，以确保在异构服务质量要求下的公平队列利用。进行了大量仿真，以评估在不同阻塞持续时间下的延迟性能，并检查所提框架内韧性机制之间的成本权衡。结果表明，所提框架在各种中断状态下实现了韧性：MC-RSMA作为关键性感知的核心方案平衡了效率和鲁棒性，主动鲁棒性策略处理频繁的短期波动，自适应恢复确保在罕见的长时间阻塞期间保持性能。
英文摘要：
As mission- and safety-critical wireless applications grow in complexity and diversity, next-generation wireless systems must meet increasingly stringent and multifaceted requirements. These systems demand resilience along with enhanced intelligence and adaptability to ensure reliable communication under diverse conditions. This paper proposes an event-based multi-stage resilience framework for systematically integrating complementary error mitigation techniques in wireless networks. The framework is applied to uplink transmission of mixedcriticality data under random link blockages. A key component is a novel mixed-criticality rate-splitting multiple access (MC-RSMA) scheme that combines multi- and single-connectivity to balance rate and blockage robustness. MC-RSMA is complemented by one-sided access point cooperation and central decoding, which are integrated into an event-driven algorithm. Here, increasingly effective but more complex mechanisms are activated sequentially to systematically counteract blockages while balancing resilience with cost. From a cross-layer perspective, two transmit power allocation problems are formulated: One for separate decoding and one for central decoding, to ensure fair queue utilization under heterogeneous quality-of-service requirements. Extensive simulations are used to evaluate the delay performance under varying blockage durations and examine the cost tradeoffs among resilience mechanisms within the proposed framework. Results show that the proposed framework achieves resilience across disruption regimes: MC-RSMA balances efficiency and robustness as a criticality-aware core scheme, active robustness strategies handle frequent short-term fluctuations, and adaptive recovery ensures performance during rare, prolonged blockages.
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