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Intersystem Interference Reduction for Overlaid HAPS-Terrestrial CDMA System
Jeng-Ji HUANG Wei-Ting WANG Mingfu LI David SHIUNG Huei-Wen FERNG
IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
HAPS, CDMA, interference, capacity,
Full Text: PDF(245.4KB)>>
In this letter, we propose that directional antennas, combined with power management, be incorporated to reduce intersystem interference in a shared band overlaid high altitude platform station (HAPS)-terrestrial code division multiple access (CDMA) system. To eliminate the HAPS to terrestrial interference, the HAPS is accessed only via directional antennas under the proposed scheme. By doing so, the uplink power to the HAPS can accordingly be increased, so that the terrestrial to HAPS interference is also effectively suppressed.