Radio resource management for OFDM-based dual-function radar-communication: sum-rate and fairness

Zhu，Jia1; Cui，Yuanhao2; Mu，Junsheng1; Jing，Zexuan1; Jing，Xiaojun1

2024-12-01

10.1186/s13638-024-02343-x

Eurasip Journal on Wireless Communications and Networking   影响因子和分区

1687-1472

1687-1499

This paper focuses on radio resource management (RRM) in multi-user dual-function radar communication (DFRC) systems using orthogonal frequency division multiplexing (OFDM) waveforms. We propose two RRM schemes, one from the perspective of sum rate maximization and the other from the perspective of user fairness maximization. These optimization problems are non-convex due to the presence of mixed integer terms, making them difficult to solve. To address these challenges, we have employed a decomposition approach to transform these two complex problems into separate, more readily solvable ones. In addressing the sum rate maximization problem, we initially introduce a heuristic greedy algorithm to obtain a resource allocation scheme that satisfies radar performance requirements. Subsequently, we utilize a cyclic iterative method along with KKT conditions to solve the sum rate maximization problem for communication users. Concerning the fairness maximization problem for communication users, we similarly employ a heuristic greedy algorithm to obtain a resource allocation scheme that meets radar performance constraints. Then utilize the Lagrangian dual method to solve the multi-user fairness maximization problem for communication users. Our experimental results confirm the effectiveness of the proposed algorithms.

Dual-function radar-communication Fairness Radio resource management Waveform design

英语

通讯

2-s2.0-85190388690

Scopus

1.School of Information and Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing,100876,China
2.Department of Electronic and Electrical Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Zhu，Jia,Cui，Yuanhao,Mu，Junsheng,et al. Radio resource management for OFDM-based dual-function radar-communication: sum-rate and fairness[J]. Eurasip Journal on Wireless Communications and Networking,2024,2024(1).

Zhu，Jia,Cui，Yuanhao,Mu，Junsheng,Jing，Zexuan,&Jing，Xiaojun.(2024).Radio resource management for OFDM-based dual-function radar-communication: sum-rate and fairness.Eurasip Journal on Wireless Communications and Networking,2024(1).

Zhu，Jia,et al."Radio resource management for OFDM-based dual-function radar-communication: sum-rate and fairness".Eurasip Journal on Wireless Communications and Networking 2024.1(2024).