Author

Hyeontae Joo

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Oct 2026

Distributed Ledger-Based Approach for Secure and Efficient Integration of SDN and DTN

In post-deployment environments with sparse or intermittent communication infrastructure, Delay Tolerant Networks (DTNs) play a critical role in maintaining connectivity through a store-carry-and-forward mechanism. To improve control and adaptability in such networks, the integration of Software-Defined Networking (SDN...

Hyeontae Joo, Taehoon Yoo, Kiseok Kim et al. · IEEE Transactions on Mobile... · 1 citation

#artificial intelligence Preprint Sep 2026

SPACE-LoRA: Allocating Activation-Subspace Protection for Continual Learning

This study addresses the catastrophic forgetting problem that occurs when sequentially learning successive tasks using Low-Rank Adaptation (LoRA) from a lifelong learning perspective and proposes Subspace Protection with Allocated Capacity for Efficient Continual Adaptation (SPACE-LoRA).

Seunghyun Yoo, Kiseok Kim, Hyeontae Joo et al. · 0 citations

Preprint Jul 2026

Cross-IP Request Coalescing: Relocating the Fan-out Point in Virtualized I/O

This letter proposes cross-IP request coalescing, which relocates the fan-out point from the guest to the SPDK vhost-user backend, and achieves up to 1.78x lower latency than the per-device baseline, with the benefit growing as concurrency increases.

Kiseok Kim, Hyeontae Joo, Hwangnam Kim · 0 citations