QoS-Oriented Sensing-Communication-Control Co-Design for UAV-Enabled Positioning

Wang, Zijie; Liu, Rongke; Liu, Qirui; Han, Lincong

doi:10.48550/arxiv.2108.09725

Cited by 1 publication

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, note that (P2.3) is neither concave or quasi-concave due to the non-convex constraints (29a), (11a) and the non-convex objective function (34). In general, there is no efficient method to obtain the optimal solution.…”

Section: Inner and Outer Layer Iterationmentioning

confidence: 99%

“…Most recently, there are several works studying the trajectory or deployment optimization issue in UAV-based ISAC [31]- [34]. For instance, the authors in [32] proposed a joint UAV maneuver and transmit beamforming optimization algorithm to maximize the communication performance while ensuring the sensing requirements for the given targets.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Throughput Maximization for UAV-enabled Integrated Periodic Sensing and Communication

Meng,

Wu,

et al. 2022

Preprint

View full text Add to dashboard Cite

Driven by unmanned aerial vehicle (UAV)'s advantages of flexible observation and enhanced communication capability, it is expected to revolutionize the existing integrated sensing and communication (ISAC) system and promise a more flexible joint design. Nevertheless, the existing works on ISAC mainly focus on exploring the performance of both functionalities simultaneously during the entire considered period, which may ignore the practical asymmetric sensing and communication requirements.In particular, always forcing sensing along with communication may make it is harder to balance between these two functionalities due to shared spectrum resources and limited transmit power. To address this issue, we propose a new integrated periodic sensing and communication (IPSAC) mechanism for the UAV-enabled ISAC system to provide a more flexible trade-off between two integrated functionalities. Specifically, the system achievable rate is maximized via jointly optimizing UAV trajectory, user association, target sensing selection, and transmit beamforming, while meeting the sensing frequency and beam pattern gain requirement for the given targets. Despite that this problem is highly non-convex and involves closely coupled integer variables, we derive the closed-form optimal beamforming vector to dramatically reduce the complexity of beamforming design, and present a tight lower bound of the achievable rate to facilitate UAV trajectory design. Based on the above results, we propose a two-layer penalty-based algorithm to efficiently solve the considered problem. To draw more important insights, the optimal achievable rate and the optimal UAV location are analyzed under a special case of infinity number of antennas. Furthermore, we prove the structural symmetry between the optimal solutions in different ISAC frames without location constraints in our considered UAV-enabled ISAC system. Based on this, we propose an efficient algorithm for solving the problem with location constraints. Numerical results validate the effectiveness of our proposed designs and also unveil a more flexible trade-off in ISAC systems over benchmark schemes.

show abstract

Section: Inner and Outer Layer Iterationmentioning

confidence: 99%