Flying Base Station Channel Capacity

Flying Base Station Channel Capacity

연구 분야: Infrastructure

학회: SNTA '24: Proceedings of the Seventh International Workshop on Systems and Network Telemetry and Analytics

Flying base station, also known as aerial base station, provides the wireless connectivity to the user and utilizes its aerial mobility to improve the communication performance. Flying base station relies on the traditional stationary terrestrial base station for its connectivity provision, since the stationary base station serves as the bridge gateway to the backhaul/cloud via wired connection. We introduce the flying base station channel capacity to build on the Shannon channel capacity, which quantifies the upper bound 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 channel capacity further assumes aerial mobility and the ideal positioning for maximum channel capacity. The flying base station channel capacity bound therefore 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 the previous research focusing 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 flying base station to analyze its position, channel capacity, and beneficialness (capacity gain) over the stationary terrestrial base station. As the flying base station communication protocols and implementations are undergoing development for the next-generation wireless networking, we focus on the information-theoretical analyses and channel capacity to inform the future research and development in flying base station networking.