Power Efficient Resource Allocation for ISAC: Combing Lyapunov Optimization and DRL
Radar and wireless communication systems are two important applications of modern electromagnetic theory. However, the serious shortage of spectrum resources in recent years poses a significant challenge for the development of both systems. Integrated sensing and communication (ISAC) has emerged as...
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| Veröffentlicht in: | 2023 IEEE Globecom Workshops (GC Wkshps) S. 1135 - 1140 |
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| Sprache: | Englisch |
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04.12.2023
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| Abstract | Radar and wireless communication systems are two important applications of modern electromagnetic theory. However, the serious shortage of spectrum resources in recent years poses a significant challenge for the development of both systems. Integrated sensing and communication (ISAC) has emerged as a promising solution to address this issue. Due to shared infrastructure and spectrum, optimal resource allocation is essential to meet the quality requirements of both sensing and communication, while maximizing the system efficiency. This paper presents a combinatorial online optimization framework based on Lyapunov theory and deep reinforcement learning (DRL) for a typical ISAC system with time-varying wireless channels and random user arrivals. The framework aims to minimize power consumption while ensuring the performance of both communication and radar detection. It first applies Lyapunov optimization to decouple a long-run stochastic mixed-integer nonlinear programming problem into deterministic subproblems in each time frame. Subsequently, it combines model-based optimization with model-free DRL to solve these subproblems. Simulation results demonstrate that the proposed framework can stabilize the data backlog queue within a short computation time and significantly reduce power consumption. |
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| AbstractList | Radar and wireless communication systems are two important applications of modern electromagnetic theory. However, the serious shortage of spectrum resources in recent years poses a significant challenge for the development of both systems. Integrated sensing and communication (ISAC) has emerged as a promising solution to address this issue. Due to shared infrastructure and spectrum, optimal resource allocation is essential to meet the quality requirements of both sensing and communication, while maximizing the system efficiency. This paper presents a combinatorial online optimization framework based on Lyapunov theory and deep reinforcement learning (DRL) for a typical ISAC system with time-varying wireless channels and random user arrivals. The framework aims to minimize power consumption while ensuring the performance of both communication and radar detection. It first applies Lyapunov optimization to decouple a long-run stochastic mixed-integer nonlinear programming problem into deterministic subproblems in each time frame. Subsequently, it combines model-based optimization with model-free DRL to solve these subproblems. Simulation results demonstrate that the proposed framework can stabilize the data backlog queue within a short computation time and significantly reduce power consumption. |
| Author | Wang, Haodong Lu, Zhaoming Chen, Yawen Wang, Zifan Wen, Xiangming |
| Author_xml | – sequence: 1 givenname: Haodong surname: Wang fullname: Wang, Haodong organization: School of Information and Communications, Beijing University of Posts and Telecommunications,Beijing Laboratory of Advanced Information Networks,Beijing,China – sequence: 2 givenname: Zifan surname: Wang fullname: Wang, Zifan organization: School of Information and Communications, Beijing University of Posts and Telecommunications,Beijing Laboratory of Advanced Information Networks,Beijing,China – sequence: 3 givenname: Yawen surname: Chen fullname: Chen, Yawen organization: School of Information and Communications, Beijing University of Posts and Telecommunications,Beijing Laboratory of Advanced Information Networks,Beijing,China – sequence: 4 givenname: Zhaoming surname: Lu fullname: Lu, Zhaoming organization: School of Information and Communications, Beijing University of Posts and Telecommunications,Beijing Laboratory of Advanced Information Networks,Beijing,China – sequence: 5 givenname: Xiangming surname: Wen fullname: Wen, Xiangming organization: School of Information and Communications, Beijing University of Posts and Telecommunications,Beijing Laboratory of Advanced Information Networks,Beijing,China |
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| Snippet | Radar and wireless communication systems are two important applications of modern electromagnetic theory. However, the serious shortage of spectrum resources... |
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| SubjectTerms | Computational modeling Deep Reinforcement Learning Integrated Sensing And Communication Lyapunov Optimization Network Stability Power demand Radar detection Resource Allocation Simulation Stability analysis Wireless communication Wireless sensor networks |
| Title | Power Efficient Resource Allocation for ISAC: Combing Lyapunov Optimization and DRL |
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