Uplink capacity enhancement for an integrated HAPS-terrestrial CDMA system

Author

Huang, Jeng-Ji ; Wang, Wei-Ting ; Ferng, Huei-Wen

Author_Institution

Dept. of Ind. Educ., Nat. Taiwan Normal Univ., Taipei

Volume

11

Issue

1

fYear

2007

Firstpage

10

Lastpage

12

Abstract

The integration of a high altitude platform station (HAPS) with existing terrestrial communication systems would be beneficial as several kinds of wireless services can be easily extended into remote areas. In this letter, we first examine the uplink capacity of a sharing-band overlaid HAPS-terrestrial code division multiple access (CDMA) system and an improved version using a doughnut-like cell model. Numerical results indicate that the uplink capacity is poor under both the proposals due to serious inter-system interference. To mitigate this problem, a ring structure is proposed for HAPS when integrated with a terrestrial cellular system

Keywords

cellular radio; channel capacity; code division multiple access; radiofrequency interference; CDMA; HAPS; cellular system; code division multiple access system; doughnut-like cell model; high altitude platform station integration; intersystem interference; terrestrial communication system; uplink capacity; wireless service; Base stations; Councils; Degradation; Downlink; Interference suppression; Millimeter wave communication; Multiaccess communication; Numerical analysis; Proposals; Wireless communication;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2007.316209

Filename

4114209