TY - JOUR
T1 - RIS-carried UAV communication
T2 - Current research, challenges, and future trends
AU - Rahmatov, Nematullo
AU - Baek, Hoki
N1 - Publisher Copyright:
© 2023 The Authors
PY - 2023/10
Y1 - 2023/10
N2 - Enhanced quality of service (QoS) and resource allocation are important measurements in a mobile communication system. Compared to traditional mobile networks, 6G uses spectrum from 0.3 to 3 terahertz (THz) and millimeter wave (mmWave) from 30 to 300 GHz (GHz), making QoS and proper resource allocation difficult. Unmanned aerial vehicles (UAVs) have garnered attention in academia and industry because of their high mobility, elastic placement, cost-efficiency, and easy combination with other communication systems. Similarly, reconfigurable intelligent surfaces (RISs) also gain the attention of the wireless research community owing to their precise signal reflection, spectrum, and energy efficiency, as well as their capability of regulating waveforms such as amplitude, frequency, polarization, and phase using passive reflections. The UAV has several weaknesses and is plagued by eavesdroppers, blockage, etc. Likewise, deploying RIS also is ineffective in standalone scenarios due to the user's mobility. Thus, we comprehensively review recent studies on UAV and RIS technologies. Furthermore, we have discussed the challenges of future communication technologies evolving RIS-assisted UAVs and future trends. We aim to provide sufficient information for the research on UAV and RIS's revolutionized phases, problems, and research trends.
AB - Enhanced quality of service (QoS) and resource allocation are important measurements in a mobile communication system. Compared to traditional mobile networks, 6G uses spectrum from 0.3 to 3 terahertz (THz) and millimeter wave (mmWave) from 30 to 300 GHz (GHz), making QoS and proper resource allocation difficult. Unmanned aerial vehicles (UAVs) have garnered attention in academia and industry because of their high mobility, elastic placement, cost-efficiency, and easy combination with other communication systems. Similarly, reconfigurable intelligent surfaces (RISs) also gain the attention of the wireless research community owing to their precise signal reflection, spectrum, and energy efficiency, as well as their capability of regulating waveforms such as amplitude, frequency, polarization, and phase using passive reflections. The UAV has several weaknesses and is plagued by eavesdroppers, blockage, etc. Likewise, deploying RIS also is ineffective in standalone scenarios due to the user's mobility. Thus, we comprehensively review recent studies on UAV and RIS technologies. Furthermore, we have discussed the challenges of future communication technologies evolving RIS-assisted UAVs and future trends. We aim to provide sufficient information for the research on UAV and RIS's revolutionized phases, problems, and research trends.
KW - QoS
KW - Reconfigurable intelligent surface
KW - RIS-carried UAV
KW - Unmanned aerial vehicles
UR - http://www.scopus.com/inward/record.url?scp=85151439191&partnerID=8YFLogxK
U2 - 10.1016/j.icte.2023.03.004
DO - 10.1016/j.icte.2023.03.004
M3 - Review article
AN - SCOPUS:85151439191
SN - 2405-9595
VL - 9
SP - 961
EP - 973
JO - ICT Express
JF - ICT Express
IS - 5
ER -