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Resource Allocation for Secure Multi-UAV Communication Systems With Multi-Eavesdropper
- Source :
- IEEE Transactions on Communications. 68:4490-4506
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- In this paper, we study the resource allocation and trajectory design for secure unmanned aerial vehicle (UAV)-enabled communication systems, where multiple multi-purpose UAV base stations are dispatched to provide secure communications to multiple legitimate ground users (GUs) in the existence of multiple eavesdroppers (Eves). Specifically, by leveraging orthogonal frequency division multiple access (OFDMA), active UAV base stations can communicate to their desired ground users via the assigned subcarriers while idle UAV base stations can serve as jammer simultaneously for communication security provisioning. To achieve fairness in secure communication, we maximize the average minimum secrecy rate per user by jointly optimizing the communication/jamming subcarrier allocation policy and the trajectory of UAVs, while taking into account the constraints on the minimum safety distance among multiple UAVs, the maximum cruising speed, the initial/final locations, and the existence of cylindrical no-fly zones (NFZs). The design is formulated as a mixed integer non-convex optimization problem which is generally intractable. Subsequently, a computationally-efficient iterative algorithm is proposed to obtain a suboptimal solution. Simulation results illustrate that the performance of the proposed iterative algorithm can significantly improve the average minimum secrecy rate compared to various baseline schemes.<br />Accepted for publication, IEEE TCOM
- Subjects :
- Signal Processing (eess.SP)
FOS: Computer and information sciences
Computer science
Computer Science - Information Theory
Orthogonal frequency-division multiple access
ComputerApplications_COMPUTERSINOTHERSYSTEMS
050801 communication & media studies
Jamming
02 engineering and technology
Communications system
Subcarrier
Base station
0508 media and communications
Secure communication
FOS: Electrical engineering, electronic engineering, information engineering
0202 electrical engineering, electronic engineering, information engineering
Wireless
Electrical Engineering and Systems Science - Signal Processing
Electrical and Electronic Engineering
business.industry
Information Theory (cs.IT)
05 social sciences
020206 networking & telecommunications
Resource allocation
business
Computer network
Subjects
Details
- ISSN :
- 15580857 and 00906778
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Communications
- Accession number :
- edsair.doi.dedup.....991b6a46ee70d6a5dd631b25c0ef36e7