IEEE ICC | Kaushik A, Masouros C, Liu F | In this paper, we aim to achieve energy efficient design with minimum hardware requirement for hybrid precoding, which enables a large number of antennas w...
Hardware Efficient Joint Radar-Communications with Hybrid Precoding and RF Chain Optimization
Abstract
In this paper, we aim to achieve energy efficient design with minimum hardware requirement for hybrid precoding, which enables a large number of antennas with minimal number of RF chains, and sub-arrayed multiple-input multiple-output (MIMO) radar based joint radar-communication (JRC) systems. A dynamic active RF chain selection mechanism is implemented in the baseband processing and the energy efficiency (EE) maximization problem is solved using fractional programming to obtain the optimal number of RF chains at the current channel state. Subsequently hybrid precoders are computed employing a sub-arrayed MIMO structure for EE maximization with weighted formulation of the communication and radar metrics, and the solution is based on alternating minimization. The simulation results show that the proposed method with minimum hardware achieves the best EE while maintaining the rate performance, and an efficient trade-off between sensing and communication.
Publication Type: | Conference |
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Authors: | Kaushik A, Masouros C, Liu F |
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Publication date: | 15/06/2021 |
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Name of Conference: | IEEE International Conference on Communications |
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Conference start date: | 14/06/2021 |
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Conference end date: | 23/06/2021 |
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Conference location: | Montreal, Canada | Virtual |
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Status: | Accepted |
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Full Text URL: | |
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