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NOMA-ISAC: Performance Analysis and Rate Region Characterization

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arxiv 2205.13756 v1 pith:6TUDCD2Y submitted 2022-05-27 cs.IT eess.SPmath.IT

Chongjun Ouyang , Yuanwei Liu , Hongwen Yang This is my paper · ORCID
classification cs.ITeess.SPmath.IT
keywords ratesystemisacregionsensingcommunicationsnoma-isacperformance
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This paper analyzes the performance of a multiuser integrated sensing and communications (ISAC) system, where nonorthogonal multiple access (NOMA) is exploited to mitigate inter-user interference. Closed-form expressions are derived to evaluate the outage probability, ergodic communication rate, and sensing rate. Furthermore, asymptotic analyses are carried out to unveil diversity orders and high signal-to-noise ratio (SNR) slopes of the considered NOMA-ISAC system. As the further advance, the achievable sensing-communication rate region of ISAC is characterized. It is proved that ISAC system is capable of achieving a larger rate region than the conventional frequency-division sensing and communications (FDSAC) system.

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  1. Secure Integrated Sensing and Communication Networks: Stochastic Performance Analysis

    cs.IT 2025-07 conditional novelty 6.0 of 10

    Closed-form expressions for secrecy rate, radar angle-estimation error, and estimation outage for two secure ISAC beamforming schemes in a fading MIMO downlink.

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