Uplink and downlink communications qualities in CDMA cellular systems considering effects of traffic distribution

Citation
K. Takeo et al., Uplink and downlink communications qualities in CDMA cellular systems considering effects of traffic distribution, IEICE T FUN, E82A(12), 1999, pp. 2677-2686
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
ISSN journal
0916-8508 → ACNP
Volume
E82A
Issue
12
Year of publication
1999
Pages
2677 - 2686
Database
ISI
SICI code
0916-8508(199912)E82A:12<2677:UADCQI>2.0.ZU;2-E
Abstract
This paper describes the effects of traffic distributions on, uplink and do wnlink communications qualities in CDMA cellular systems. Many researches h ave been done from the viewpoint of the system capacity under ideal conditi ons in both uplink and downlink. However, there are few studies regarding t raffic distributions that concurrently affect the uplink and downlink; qual ity. The characteristics in both links are different even in a spatially un iform traffic distribution because the system structures are not symmetric between both links. When non-uniform radio environments are assumed, both l ink qualities become very different from each other. It is therefore import ant to design systems in consideration of link-specific characteristics in whole serv ice area. This paper clarifies the difference in both link chara cteristics in CDMA systems regarding traffic distributions.