~/talk

Decoding RSSI Compression in RFID: Dynamic RCS Modeling and Tag-Intrinsic Power Metrics..

on YouTube 15m
Talkat NSDI '26 · 2026-05-04..05-06· [iot, networking]

speakers

name:Jia Liu
links:none on file
name:Yifei Ma
links:none on file
name:Xingyu Chen
links:none on file
name:Haipeng Dai
links:none on file
name:He Huang
links:none on file
name:Zihao Lin
links:none on file
name:Wei Zheng
links:none on file
name:Junzhao Du
links:none on file
name:Guihai Chen
links:none on file

resources

video:https://youtu.be/Zx8Lh5Xt0Sg
slides:none on file

summary

Presents experiments showing that reader RSSI in RFID/backscatter systems is distorted by power-dependent compression caused by dynamic tag Radar Cross Section (RCS). Introduces two physical-layer metrics—Interrogation Threshold Power (ITP) for channel-specific link-quality estimation and Backscatter Power Index (BPI) as a tag-intrinsic signature—and a single-query measurement method that dramatically reduces overhead and lowers channel-estimation error to improve collision detection, power control, localization, and sensing.

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