Radar Enabled Adaptive Modulation for Millimeter Wave Integrated Sensing and Communication

TL;DR

This paper proposes a radar-enabled modulation scheme selection for integrated sensing and communication in 6G, significantly improving throughput without relying on feedback mechanisms.

Contribution

It introduces a novel radar-enabled modulation selection method that replaces traditional feedback-based schemes in ISAC systems.

Findings

Throughput improved by 54-209% over existing methods

Effective in four different mobility trajectories

Eliminates need for downlink-uplink feedback for modulation selection

Abstract

An integrated sensing and communication (ISAC) framework comprises radar sensing to enable reliable direction beam-based communication between a base station (BS) and mobile user (MU). The ISAC will be an integral part of 6G with potential applications for high-speed vehicular communications. Existing works have explored azimuth and Doppler velocity estimated via radar sensing for beam identification and identification in dynamic environments. In this work, we propose radar-enabled modulation scheme selection for ISAC, thereby eliminating conventional time-consuming downlink-uplink feedback-based modulation scheme selection. We have analyzed the performance of the proposed approach for four different trajectories and shown an improvement in throughput between 54-209% over state-of-the-art ISAC.