An Experimental Prototype for Multistatic Asynchronous ISAC

TL;DR

This paper presents a prototype multistatic mmWave ISAC system based on IEEE802.11ay that achieves synchronized sensing through LoS signal propagation, enabling enhanced human movement sensing and data fusion.

Contribution

The paper introduces a practical multistatic ISAC prototype that compensates for clock asynchrony using wireless signals, facilitating concurrent sensing and multistatic data fusion.

Findings

Enhanced human movement sensing demonstrated

Effective compensation of clock asynchrony achieved

Multistatic data fusion improves sensing capabilities

Abstract

We prototype and validate a multistatic mmWave ISAC system based on IEEE802.11ay. Compensation of the clock asynchrony between each TX and RX pair is performed using the sole LoS wireless signal propagation. As a result, our system provides concurrent target tracking and micro-Doppler estimation from multiple points of view, paving the way for practical multistatic data fusion. Our results on human movement sensing, complemented with precise, quantitative GT data, demonstrate the enhanced sensing capabilities of multistatic ISAC, due to the spatial diversity of the receiver nodes.