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Joint System of Terrestrial and High Altitude Platform Station (HAPS) Cellular for W-CDMA Mobile Communications

Shinya MASUMURA, Masao NAKAGAWA

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Summary :

The plan of High Altitude Platform Station (HAPS) is considered as a revolutionary wireless system plan with several economic and technological advantages over both space- or ground-based counterparts. In this paper, we propose a joint system of terrestrial and HAPS cellular for Wideband-CDMA mobile communication. This system makes the conventional terrestrial W-CDMA cellular area smaller and the remainder area covered by HAPS to increase the total capacity. Furthermore in down link channel, we introduce the polarized wave and doughnut-like radiation. However, in the proposed system, the performance would be dependent on the terminal position especially near the boundary of doughnut-like cell zone. To overcome this, site diversity that uses both signals from terrestrial Base Station and HAPS Base Station is also introduced. To confirm the availability of the proposed system, we evaluate the system performance by computer simulation.

Publication
IEICE TRANSACTIONS on Communications Vol.E85-B No.10 pp.2051-2058
Publication Date
2002/10/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Mobile Multimedia Communications)
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