@inproceedings{9ce6d0d8802a4dafa42321f29eeb3717,
title = "Designs of microcell for an integrated HAPS-terrestrial CDMA system",
abstract = "In this paper, a microcell is designed for enhancing the uplink capacity of an existing terrestrial cellular code division multiple access (CDMA) system. The proposed designs involve integration of a high altitude platform station (HAPS) and the terrestrial system. By adjusting the projection of a phased array antenna onboard the HAPS, two designs of microcell are developed in the integrated system. One is that main lobe directions of the antenna coincide with the locations of terrestrial base stations; the other instead has a projection pattern with main lobes pointing toward terrestrial cell boundaries. Numerical analysis is performed and the results show that the uplink capacity is significantly enhanced under both our proposed designs, compared with a purely ground-based or a purely HAPS CDMA system; furthermore, the latter design can provide more than 15\% higher uplink capacity over the former one.",
keywords = "Code division multiple access (CDMA), High altitude platform station (HAPS), Interference, Microcell, Uplink capacity",
author = "Huang, \{Jeng Ji\} and Wu, \{Zong Jhe\} and Wang, \{Wei Ting\}",
year = "2008",
doi = "10.1109/PIMRC.2008.4699717",
language = "English",
isbn = "9781424426447",
series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008",
note = "19th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008 ; Conference date: 15-09-2008 Through 18-09-2008",
}