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International Institute of Information Technology, Bangalore

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Representative Papers

Adaptive Bridge: A Proxy-Based Decoupling Layer for Mitigating DDS Backpressure in ROS 2

Aug 15, 2026

This study addresses performance degradation in critical ROS 2 nodes caused by backpressure from slow subscribers on reliable DDS topics. We propose a proxy-based decoupling architecture featuring a novel dual-write mechanism and a health probe classifier with hysteresis. By splitting topics and isolating traffic via parallel reliable and best-effort channels, the system adaptively throttles non-critical data streams to prevent backpressure propagation. Experimental results demonstrate that under severe interference, publisher throughput remains stable at 30 Hz, while the p95 tail latency for critical subscribers decreases from 15 seconds to under 2 milliseconds. These findings confirm that the proposed approach effectively preserves both system real-time responsiveness and overall throughput in the presence of heterogeneous subscriber behaviors.

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Latest Papers

Adaptive Bridge: A Proxy-Based Decoupling Layer for Mitigating DDS Backpressure in ROS 2

Aug 15, 2026

This study addresses performance degradation in critical ROS 2 nodes caused by backpressure from slow subscribers on reliable DDS topics. We propose a proxy-based decoupling architecture featuring a novel dual-write mechanism and a health probe classifier with hysteresis. By splitting topics and isolating traffic via parallel reliable and best-effort channels, the system adaptively throttles non-critical data streams to prevent backpressure propagation. Experimental results demonstrate that under severe interference, publisher throughput remains stable at 30 Hz, while the p95 tail latency for critical subscribers decreases from 15 seconds to under 2 milliseconds. These findings confirm that the proposed approach effectively preserves both system real-time responsiveness and overall throughput in the presence of heterogeneous subscriber behaviors.

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