Energy-efficient trajectory design for secure SWIPT systems assisted by UAV-IRS

计算机科学 波束赋形 最大功率转移定理 发射机功率输出 人为噪声 水准点(测量) 无线 窃听 基站 能量收集 能量(信号处理) 实时计算 功率(物理) 发射机 电信 计算机网络 物理层 数学 大地测量学 统计 物理 频道(广播) 量子力学 地理
作者
Zhao Li,Shaocheng Qu,Hongbo Xu,Ziming Wei,Chen Zhang
出处
期刊:Vehicular Communications [Elsevier BV]
卷期号:45: 100725-100725 被引量:38
标识
DOI:10.1016/j.vehcom.2023.100725
摘要

Due to its controllable maneuverability, wide coverage, and low cost, unmanned aerial vehicle (UAV) has great potential in post-disaster rescue, cargo transport and emergency communication. Considering its limited onboard energy, energy-efficient UAV communication is a challenge. This research examines the security of simultaneous wireless information and power transfer (SWIPT) systems assisted by intelligent reflecting surfaces (IRS) and UAVs while considering the flight energy of rotary-wing UAVs. Specifically, an IRS is mounted on a UAV to enhance the quality of legitimate transmission, and artificial noise (AN) is introduced into the base station (BS) to reduce eavesdropping quality. The power splitting (PS) technology is adopted at ground devices (GDs) to simultaneously decode information and harvest energy. First, we jointly design the BS transmit beamforming, UAV-IRS phase shifts and trajectory/velocity as well as GDs PS ratio with the aim of maximizing the sum secrecy rate of all GDs. Then, an iterative algorithm is developed to address the formulated problem. In particular, additional variables are introduced to handle this complicated objective function, and the original problem is decoupled into multiple sub-problems, which can be solved alternately by invoking the successive convex approximation (SCA) and semidefinite relaxation (SDR) techniques. Finally, numerical results demonstrate that the proposed scheme exhibits a substantial performance in the security rate of SWIPT systems assisted by UAV-IRS, and its performance is improved by at least 12% compared to benchmark schemes at the flight energy budget ethr=5KJ and the number of reflecting elements Nr=25.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
刚刚
2秒前
3秒前
乐天发布了新的文献求助10
5秒前
疯狂的炳发布了新的文献求助10
5秒前
6秒前
Owen应助心灵美的修洁采纳,获得10
6秒前
7秒前
解语花发布了新的文献求助10
7秒前
9秒前
搜集达人应助科研通管家采纳,获得10
9秒前
9秒前
9秒前
9秒前
9秒前
Owen应助科研通管家采纳,获得10
9秒前
小马甲应助科研通管家采纳,获得10
9秒前
Hello应助科研通管家采纳,获得10
9秒前
李爱国应助科研通管家采纳,获得10
10秒前
桐桐应助科研通管家采纳,获得10
10秒前
JamesPei应助科研通管家采纳,获得10
10秒前
JamesPei应助科研通管家采纳,获得10
10秒前
慕青应助科研通管家采纳,获得10
10秒前
10秒前
10秒前
10秒前
10秒前
科研通AI2S应助科研通管家采纳,获得10
10秒前
Espionage完成签到,获得积分10
12秒前
关灯完成签到,获得积分10
14秒前
寸光完成签到,获得积分20
15秒前
szy完成签到,获得积分10
17秒前
科研通AI5应助PINGAN采纳,获得10
17秒前
18秒前
19秒前
19秒前
20秒前
北侨发布了新的文献求助10
20秒前
传奇3应助苹果采纳,获得10
21秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
Immigrant Incorporation in East Asian Democracies 600
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3967419
求助须知:如何正确求助?哪些是违规求助? 3512730
关于积分的说明 11164792
捐赠科研通 3247704
什么是DOI,文献DOI怎么找? 1793978
邀请新用户注册赠送积分活动 874785
科研通“疑难数据库(出版商)”最低求助积分说明 804517