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cs.NI2026
Achieving Rate-Concurrency Balance for Underwater Concurrent Random Access
Enqi Zhang, Yuxuan Guo, Weining Li +5
Underwater acoustic networks face a fundamental rate--concurrency tradeoff: high-rate waveforms (e.g., OFDM, OTFS) are designed for point-to-point links and rely on orthogonal MAC…
cs.NI2026
Iterative Receiver Processing at Relays in PNC-Enabled Multi-Hop Underwater Acoustic Networks
Gewei Zhang, Deqing Wang, Lizhao You +2
Physical-layer network coding (PNC) can increase end-to-end throughput in bi-directional multi-hop underwater acoustic (UWA) networks. However, multipath delay spread and Doppler-i…