Outage Tradeoff Analysis in a Downlink Integrated Sensing and Communication Network

Marziyeh Soltani; Mahtab Mirmohseni; Rahim Tafazolli

doi:10.48550/arxiv.2305.15388

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Outage Tradeoff Analysis in a Downlink Integrated Sensing and Communication Network

Marziyeh Soltani, Mahtab Mirmohseni and Rahim Tafazolli

24/05/2023

DOI: https://doi.org/10.48550/arxiv.2305.15388

Abstract

This paper aims to analyze the stochastic performance of a multiple input multiple output (MIMO) integrated sensing and communication (ISAC) system in a downlink scenario, where a base station (BS) transmits a dual-functional radar-communication (DFRC) signal matrix, serving the purpose of transmitting communication data to the user while simultaneously sensing the angular location of a target. The channel between the BS and the user is modeled as a random channel with Rayleigh fading distribution, and the azimuth angle of the target is assumed to follow a uniform distribution. We use a maximum ratio transmission (MRT) beamformer to share resource between sensing and communication (S \& C) and observe the trade-off between them. We derive the approximate probability density function (PDF) of the signal-to-noise ratio (SNR) for both the user and the target. Subsequently, leveraging the obtained PDF, we derive the expressions for the user's rate outage probability (OP), as well as the OP for the Cramer-Rao lower bound (CRLB) of the angle of arrival (AOA). In our numerical results, we demonstrate the trade-off between S \& C, confirmed with simulations.

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Title: Outage Tradeoff Analysis in a Downlink Integrated Sensing and Communication Network
Creators: Marziyeh Soltani - University of Surrey, School of Computer Science and Electronic Engineering
Mahtab Mirmohseni - University of Surrey, School of Computer Science and Electronic Engineering
Rahim Tafazolli - University of Surrey, School of Computer Science and Electronic Engineering
Identifiers: 99777797902346
Copyright: The URI http://arxiv.org/licenses/nonexclusive-distrib/1.0/ is used to record the fact that the submitter granted the following license to arXiv.org on submission of an article: I grant arXiv.org a perpetual, non-exclusive license to distribute this article. I certify that I have the right to grant this license. I understand that submissions cannot be completely removed once accepted. I understand that arXiv.org reserves the right to reclassify or reject any submission.
Academic Unit: School of Computer Science and Electronic Engineering
Language: English
Resource Type: Preprint

Outage Tradeoff Analysis in a Downlink Integrated Sensing and Communication Network

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