Abstract
Frequency coordination is the process that assigns frequency bands to neighboring or coexisting systems to minimize interference. This interference is caused by unwanted signals from adjacent frequency bands. Especially, interference is maximized by the spatial near-far problem which occurs in case two different cellular systems serve. This critical case happens when different cellular operators using the adjacent carriers do not collocate their base stations (BS). In this paper, we investigate the frequency coordination when two CDMA operators using adjacent CDMA carriers don't collocate their BS. In order to lessen the unwanted interference, we put the guard band which separates adjacent carriers. This paper presents the simulation and laboratory test results to analyze the guard bandwidth requirement. For guard band simulation, we derive theoretical interference prediction models which calculate the quantity of unwanted interference. Additionally, this paper confirms the accuracy of the theoretical models with a series of laboratory test. The results in this paper assert the necessity for the guard band and discover the relation between the amount of that and the service quality.
Recommended Citation
S. J. Park et al., "Frequency Coordination Between Adjacent Carriers Of Two CDMA Operators," IEEE Vehicular Technology Conference, vol. 3, pp. 1458 - 1461, Institute of Electrical and Electronics Engineers, Jan 1996.
The definitive version is available at https://doi.org/10.1109/VETEC.1996.503999
Department(s)
Computer Science
International Standard Serial Number (ISSN)
0740-0551
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 1996
