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Drones systems have been recently proposed for the provision of fixed broadband services. Currently we have two well established methods for providing wireless communication services. Those are the traditional satellite and the terrestrial systems. With this concept, we are able to exploit much the advantages and at the same time overcome the shortage of both the traditional systems.The most important advantages of employing HAP are high elevation angles,broad coverage, low propagation delay, low-cost operation, easy and incremental deployment, and ability to move around in emergency situation. However,immature airship technology, stabilization, and onboard antenna technology are also challenging. HAP is expected to avoid some limitations of the traditional systems. Those are in the sense of a huge number of base stations required by the terrestrial system, limitation of the minimum cell size on the ground involved in GEO satellite system, and suffer from handover problem faced by LEO/MEO satellite system.
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Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.