OFDM-MIMO Applications for High Altitude Platform Communications

Document type: Bookchapters
Peer reviewed: Yes
Author(s): Abbas Mohammed, Tommy Hult
Title: OFDM-MIMO Applications for High Altitude Platform Communications
Book: Orthogonal Frequency Division Multiple Access Fundamentals and Applications
Year: 2010
Editor: Tao Jiang, Lingyang Song, Yan Zhang
ISBN: 9781420088243
Publisher: Auerbach Publications, CRC Press
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Electrical Engineering (Sektionen för ingenjörsvetenskap - Avd. för elektroteknik)
School of Engineering S-371 79 Karlskrona
+46 455 38 50 00
Authors e-mail: amo@bth.se, thu@bth.se
Language: English
Abstract: In this chapter we propose a combined Orthogonal Frequency Division Multiplexing (OFDM)
and Multiple-Input Multiple-Output (MIMO), i.e. OFDM-MIMO system, in order to increase the capacity of High Altitude Platform (HAP) communication links. In the proposed
system, the OFDM parameters and various compact MIMO antenna array configurations are investigated and their performance, in term of capacity, is analysed. In addition, since these special compact MIMO antenna array configurations depend on the array elements
being positioned very closely together, the effect of mutual coupling and spatial correlation will also be analysed and taken into account when performing the simulation for this combined diversity system. Further, we will investigate the influence of the separation angle between the multiple relaying platforms on system performance, and determine the optimal separation angles that maximize the total capacity of the system.
Subject: Telecommunications\General
Keywords: High Altitude Platforms, HAPs, MIMO, OFDM