Bandwidth-Efficient 3D Point Cloud Sidelink for Cooperative Autonomous Perception

Transmitting raw LiDAR data requires gigabits per second of bandwidth. This paper presents an automotive-grade compression pipeline achieving 100 Mbps broadcast feasibility.

Empirical Compression Metrics Across Urban Scenarios

Testing across 1,000 km of autonomous driving proved that octree pruning combined with deep geometry autoencoders cuts packet payload size by 94.6% with zero impact on detection.

Channel Congestion and Fallback Graceful Degradation

Under high RF channel load, the encoder dynamically drops static asphalt voxels, preserving safety-critical dynamic object boundaries at full resolution.

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