TY - GEN
T1 - Designs of microcell for an integrated HAPS-terrestrial CDMA system
AU - Huang, Jeng Ji
AU - Wu, Zong Jhe
AU - Wang, Wei Ting
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
KW - Code division multiple access (CDMA)
KW - High altitude platform station (HAPS)
KW - Interference
KW - Microcell
KW - Uplink capacity
UR - http://www.scopus.com/inward/record.url?scp=69949176515&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=69949176515&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2008.4699717
DO - 10.1109/PIMRC.2008.4699717
M3 - Conference contribution
AN - SCOPUS:69949176515
SN - 9781424426447
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
BT - 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
T2 - 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
Y2 - 15 September 2008 through 18 September 2008
ER -