Green UAV communications for 6G: A survey

• DOI: 10.1016/j.cja.2021.04.025
• Publication Date: 2021-05-28T04:39:41Z
• Authors: Xu JIANG; Min SHENG; Nan ZHAO; Chengwen XING; Weidang LU; Xianbin WANG
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology; 7. Clean energy

Unmanned Aerial Vehicles (UAVs) have received a wide range of attention for military and commercial applications. Enhanced with communication capability, UAVs are considered to play important roles in the Sixth Generation (6G) networks due their low cost flexible deployment. 6G is supposed be an all-coverage network provide ubiquitous connections space, air, ground underwater. able air-borne wireless coverage flexibly, serving as aerial base stations users, relays connect isolated nodes, or mobile users cellular networks. However, onboard energy small extremely limited. Thus, can only deployed establish links temporarily. Prolonging lifetime developing green UAV power consumption becomes critical challenge. In this article, comprehensive survey on communications carried out. Specifically, typical models introduced. Then, trends provided. addition, applications designs discussed. Finally, several promising techniques open research issues also pointed