Article ID: | iaor20027 |
Country: | Netherlands |
Volume: | 98 |
Issue: | 1 |
Start Page Number: | 235 |
End Page Number: | 253 |
Publication Date: | Dec 2000 |
Journal: | Annals of Operations Research |
Authors: | Nordholm Sven, Nordberg Jrgen, Claesson Ingvar, Nordebo Sven |
Keywords: | semi-infinite programming |
The growth of wireless communication continues. There is a demand for more user capacity from new subscribers and new services such as wireless internet. In order to meet these expectations new and improved technology must be developed. A way to increase the capacity of an existing mobile radio network is to exploit the spatial domain in an efficient way. An antenna array adds spatial domain selectivity in order to improve the Carrier-to-Interference ratio (C/I) as well as Signal-to-Noise Radio (SNR). An adaptive antenna array can further improve the Carrier-to-Interference ratio (C/I) by suppressing interfering signals and steer a beam towards the user. The suggested scheme is a combination of a beamformer and an interference canceller. The proposed structure is a circular array consisting of