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arXiv · 2211.06979

Towards a performance bound on MIMO DFRC systems

Ziheng Zheng·Xiang Liu·Tianyao Huang·Yimin Liu·Yonina C. Eldar
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Abstract

It is a fundamental problem to analyse the performance bound of multiple-input multiple-output (MIMO) dual-functional radar-communication (DFRC) systems. To this end, we derive a performance bound on the communication function under a constraint on radar performance. To facilitate the analysis, we consider a toy example, in which there is only one down-link user with a single receive antenna and one radar target. In such a simplified case, we obtain an analytical expression for the performance bound and the corresponding waveform design strategy to achieve the bound. The results reveal a tradeoff between communication and radar performance, and a condition when the transmitted energy can be shared between these two functions.

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Ziheng Zheng, Xiang Liu, Tianyao Huang, Yimin Liu, Yonina C. Eldar. 2022-11-13. Towards a performance bound on MIMO DFRC systems. https://arxiv.org/abs/2211.06979

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