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Radar Enabled Adaptive Modulation for Millimeter Wave Integrated Sensing and Communication

Jai Mangal, Sumit Darak, Shobha Sundar Ram

TL;DR

This work proposes radar-enabled modulation scheme selection for ISAC, thereby eliminating conventional time-consuming downlink-uplink feedback-based modulation scheme selection and showing an improvement in throughput between 54-209% over state-of-the-art ISAC.

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.

Radar Enabled Adaptive Modulation for Millimeter Wave Integrated Sensing and Communication

TL;DR

This work proposes radar-enabled modulation scheme selection for ISAC, thereby eliminating conventional time-consuming downlink-uplink feedback-based modulation scheme selection and showing an improvement in throughput between 54-209% over state-of-the-art ISAC.

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.
Paper Structure (5 sections, 4 equations, 5 figures, 2 tables)

This paper contains 5 sections, 4 equations, 5 figures, 2 tables.

Table of Contents

  1. Introduction
  2. System Model
  3. Proposed Radar-Enabled Adaptive Modulation for ISAC
  4. Performance Analysis
  5. Conclusion

Figures (5)

  • Figure 1: Modified IEEE 802.11ad based ISAC system. (a) Stage I (Sensing), (b) Stage II (Communication).
  • Figure 2: Radar enabled adaptive modulation. (a)Range-based proposed adaptive modulation scheme for ISAC, (b)Variation of SNR with increase in range.
  • Figure 3: Trajectories for evaluation of adaptive modulation. (a) U-Shaped, (b) Figure of 8, (c) Sine and (d) Hybrid.
  • Figure 4: BER of ISAC system for different trajectories. (a) U-Shaped, (b) Figure of 8, (c) Sine and (d) Hybrid.
  • Figure 5: Throughput and average BER for different trajectories. (a) U-Shaped, (b) Figures of 8, (c) Sine and (d) Hybrid.