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In recent times, aerial platforms have been investigated to provide wireless coverage to terrestrial radio terminals. The advantages of using aerial platforms to provide wireless coverage are many including larger coverage in remote areas, better line-of-sight conditions and resilience to certain natural disasters. In this context, we investigate the performance of using LTE and Wi-Fi technologies...
Providing "connectivity from the sky" is the new innovative trend in wireless communications. High and low altitude platforms, drones, aircrafts, and airships are being considered as candidates for deploying wireless communications complementing the terrestrial communication infrastructure. In this article we report the detailed account of the design and implementation challenges of an aerial...
In this paper we present the results of spectrum occupancy measurements conducted in different urban environments, in greater Melbourne area, Australia. We capture the dynamic nature of spectrum occupancy seen from a spatial perspective, by conducting spectrum monitoring measurements on board a mobile vehicle. With a wide spectrum window selected from 400 to 6000 MHz we aim to shed some light on the...
Device-to-Device (D2D) communications is considered to be a promising technique in next-generation communication networks aiming to enhance spectrum utilization and energy-efficiency. In this paper, we investigate the radio propagation behavior of the D2D channel in rural areas by conducting field measurements. We characterize the D2D channel by estimating the path-loss exponent and the standard deviation...
In this paper we introduce a novel analytic approach in clustering wireless nodes on ground fields through the assistance of an aerial base station, forming an aerial backhauled network. On the ground, some of the deployed nodes act as cluster heads, and aggregate and relay the terrestrial data towards the aerial platform. We present a novel cluster-head selection algorithm based on Matern hard-core...
Dedicated Short-Range Communications (DSRC) technology in the 5.8GHz band is a key enabler to support a safer and more efficient vehicular transportation in the future. The chosen 5.8GHz frequency band is therefore of great interest for us to study the propagation of signals under various environments. In this paper we investigate and record the propagation effects of 5.8GHz radio signals in an urban...
In the recent years the millimeter wave spectrum is being explored as a prospective band for the next generation (5G) cellular communications. In this paper we study the propagation of the the millimetre wave spectrum using ray tracing model for an urban environment. We consider the ISM bands in 24GHz and 61GHz in particular and conduct ray tracing simulations to study the path loss behaviour in terms...
In this paper we propose a clustering mechanism for improved energy efficiency in aerial based access systems suitable for disaster recovery scenarios and large scale public events. The aerial base station is a low altitude platform (LAP) station that provides access to several terrestrial nodes on the ground over a prescribed coverage area. The terrestrial nodes are battery operated power constrained...
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