Energy efficient deployment of aerial base stations for mobile users in multi-hop UAV networks

Ryu, Kyungho; Kim, Wooseong

doi:10.1016/j.adhoc.2024.103463

Cited by 3 publications

(2 citation statements)

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“…Previous research studies have focused on the positioning of the flying base station and its interplay and impact on the communication channel to the user. They used the standard path loss model to characterize the channel signal performance with respect to physical distance, e.g., [3,[9][10][11][12], and the corresponding channel capacity, e.g., [1,3,[13][14][15][16]. These approaches and metrics are similar to what we used in our work to quantify the channel performances with respect to the flying base station's position.…”

Section: Related Workmentioning

confidence: 99%

“…Future research is needed to study such factors, costs, constraints, and the trade-off between moving vs. transmitting with greater power. The flying base station's mobility requirement also results in the limitations in energy resource (batteryoperated as opposed to having a stable and constant power supply), which in turn requires energy-efficient designs, such as those for controlling sleeping/idle state [32], charging station assignments [33], and positioning [16,34,35].…”

Section: Mobility Challengementioning

confidence: 99%

See 1 more Smart Citation

Flying Base Station Channel Capacity Limits: Dependent on Stationary Base Station and Independent of Positioning

Chang,

Park,

Kim

et al. 2024

Electronics

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Flying base stations, also known as aerial base stations, provide wireless connectivity to the user and utilize their aerial mobility to improve communication performance. Flying base stations depend on traditional stationary terrestrial base stations for connectivity, as stationary base stations act as the gateway to the backhaul/cloud via a wired connection. We introduce the flying base station channel capacity to build on the Shannon channel capacity, which quantifies the upper-bound limit of the rate at which information can be reliably transmitted using the communication channel regardless of the modulation and coding techniques used. The flying base station’s channel capacity assumes aerial mobility and ideal positioning for maximum channel capacity. Therefore, the channel capacity limit holds for any digital and signal processing technique used and for any location or positioning of the flying base station. Because of its inherent reliance on the stationary terrestrial base station, the flying base station channel capacity depends on the stationary base station’s parameters, such as its location and SNR performance to the user, in contrast to previous research, which focused on the link between the user and the flying base station without the stationary base station. For example, the beneficial region (where there is a positive flying base station capacity gain) depends on the stationary base station’s power and channel SNR in addition to the flying base station’s own transmission power and whether it has full duplex vs. half-duplex capability. We jointly study the mobility and the wireless communications of the flying base station to analyze its position, channel capacity, and beneficialness over the stationary terrestrial base station (capacity gain). As communication protocols and implementations for flying base stations undergo development for next-generation wireless networking, we focus on information-theoretical analyses and channel capacity to inform future research and development in flying base station networking.

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