Signaling Design for Cooperative Resource Allocation and its Impact to Reliability

TL;DR

This paper introduces new signaling-based cooperative resource allocation schemes for robotic swarms, significantly enhancing reliability and throughput by addressing control signal failures and interference issues.

Contribution

It proposes two novel cooperative resource allocation schemes, device sequential and group scheduling, along with a signaling design that improves reliability over existing methods.

Findings

Proposed schemes outperform NR sidelink mode 2 by an order of magnitude in reliability.

Control signaling failures cause non-cooperative behavior and performance drops.

Countermeasures effectively mitigate signaling failures, enhancing overall system robustness.

Abstract

Decentralized cooperative resource allocation schemes for robotic swarms are essential to enable high reliability in high throughput data exchanges. These cooperative schemes require control signaling with the aim to avoid half-duplex problems at the receiver and mitigate interference. We propose two cooperative resource allocation schemes, device sequential and group scheduling, and introduce a control signaling design. We observe that failure in the reception of these control signals leads to non-cooperative behavior and to significant performance degradation. The cause of these failures are identified and specific countermeasures are proposed and evaluated. We compare the proposed resource allocation schemes against the NR sidelink mode 2 resource allocation and show that even though signaling has an important impact on the resource allocation performance, our proposed device sequential and group scheduling resource allocation schemes improve reliability by an order of magnitude compared to sidelink mode 2.