English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Aerial vehicles (AVs) such as electric vertical take-off and landing (eVTOL)aircraft make aerial passenger transportation a reality in urban environments.However, their communication connectivity is still under research to realizetheir safe and full-scale operation. This paper envisages a multi-connectivity(MC) enabled aerial network to provide ubiquitous and reliable service to AVs.Vertical heterogeneous networks with direct air-to-ground (DA2G) and air-to-air(A2A) communication, high altitude platforms (HAPs), and low Earth orbit (LEO)satellites are considered. We evaluate the end-to-end (E2E) multi-hopreliability and network availability of the downlink of AVs for remote pilotingscenarios, and control/telemetry traffic. Command and control (C2) connectivityservice requires ultra-reliable and low-latency communication (URLLC),therefore we analyse E2E reliability and latency under the finite blocklength(FBL) regime. We explore how different MC options satisfy the demanding E2Econnectivity requirements taking into account antenna radiation patterns andunreliable backhaul links. Since providing seamless connectivity to AVs is verychallenging due to the line-of-sight (LoS) interference and reduced gains ofdowntilt ground base station (BS) antennas, we use coordinated multi-point(CoMP) among ground BSs to alleviate the inter-cell interference. Furthermore,we solve an optimization problem to select the best MC path under the qualityof service (QoS) constraints. We maximize spectral efficiency (SE) to specifythe optimum MC path with the minimum number of required links. Based on thesimulation results, we find out that even with very efficient interferencemitigation, MC is the key enabler for safe remote piloting operations.

Reliability and Delay Analysis of 3-Dimensional Networks with Multi-Connectivity: Satellite, HAPs, and Cellular Communications