By fully exploiting the mobility of unmanned aerial vehicles (UAVs), UAV-based base stations (BSs) can move closer to ground users achieve better communication conditions. In this paper, we consider a scenario where an BS is dispatched for satisfying data request maximum number users, weighted according their demand, before exhausting its on-board energy resources. The resulting trajectory opti...

Mobile communication via high-altitude platforms operating in the stratosphere is an idea that has been on table for decades. In past few years, however, with recent advances technology and parallel progress standardization regulatory bodies like 3rd Generation Partnership Project (3GPP) International Telecommunications Union (ITU), these ideas have gained considerable momentum. this article, w...

Drones are begin used for various purposes such as border security, surveillance, cargo delivery, visual shows and it is not possible to overcome intensive tasks with a single drone. In order expedite performing tasks, drone swarms employed. The number of drones in swarm can be high depending on the assigned duty. current solution authenticate using 5G new radio (NR) network requires execution ...

Enabling high data-rate uplink cellular connectivity for drones is a challenging problem, since flying drone has higher likelihood of having line-of-sight propagation to base stations that terrestrial UEs normally do not have to. This may result in inter-cell interference and performance degradation the neighboring ground when transmit at data-rates (e.g., video streaming). We address this prob...

We consider a user-centric co-operative cellular network, where base stations close to a mobile co-operate to detect its signal using a (joint) linear minimum-mean-square-error receiver. The base stations, which have multiple antennas, and mobiles are modeled as independent Poisson Point Processes to avoid dependence on specific node locations. Combining stochastic geometry and infinite random ...

Drones will be a significant part of future mobile communication networks, serving as users or acting base stations at sky. Although they provide several solutions related to networks and other non-communication services, drones also possess numerous challenges, especially when it comes their handover management. Unlike terrestrial are devices that move in three-dimension (3D) environment, whic...

Using drones for cellular coverage enhancement is a recent technology that has shown great potential in various practical scenarios. However, one of the main challenges limits performance drone-enabled wireless networks limited flight time. In particular, due to on-board battery size, drone needs frequently interrupt its operation and fly back charging station recharge/replace battery. addition...

Human populations are increasingly exposed to microwave/radiofrequency (RF) emissions from wireless communication technology, including mobile phones and their base stations. By searching PubMed, we identified a total of 10 epidemiological studies that assessed for putative health effects of mobile phone base stations. Seven of these studies explored the association between base station proximi...