Intersystem interference reduction for overlaid HAPS-terrestrial CDMA system

Jeng Ji Huang*, Wei Ting Wang, Mingfu Li, David Shiung, Huei Wen Ferng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)334-338
Number of pages5
JournalIEICE Transactions on Communications
Issue number1
Publication statusPublished - 2008


  • CDMA
  • Capacity
  • HAPS
  • Interference

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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