An Overview of Resource Allocation in Integrated Sensing and Communication

TL;DR

This paper reviews the evolution and current state of resource allocation in integrated sensing and communication systems, proposing a new multi-granularity framework validated through a full-duplex ISAC case study.

Contribution

It introduces a comprehensive resource allocation framework across different ISAC stages, including a novel multi-granularity approach and validation with a full-duplex system.

Findings

The proposed framework is feasible for full-duplex ISAC systems.

Resource allocation strategies vary across ISAC stages.

The paper summarizes current research and identifies future directions.

Abstract

Integrated sensing and communication (ISAC) is considered as a promising solution for improving spectrum efficiency and relieving wireless spectrum congestion. This paper systematically introduces the evolutionary path of ISAC technologies, then sorts out and summarizes the current research status of ISAC resource allocation. From the perspective of different integrated levels of ISAC, we introduce and elaborate the research progress of resource allocation in different stages, namely, resource separated, orthogonal, converged, and collaborative stages. In addition, we give in-depth consideration to propose a new resource allocation framework from a multi-granularity perspective. Finally, we demonstrate the feasibility of our proposed framework with a case of full-duplex ISAC system.