Title :
On the effect of adjacent GSM system to FDSS uplink capacity
Author :
Taha-Ahmed, Bazil ; Calvo-Ram, Miguel ; De Haro-Ariet, Leandro
Author_Institution :
ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain
Abstract :
One of the main challenges when implementing the future mobile multimedia networks is the cost effective network evolution from second to third-generation systems. This evolution may include the use of different technologies at the same frequency band. In this paper, the performance of the frequency diversity spread spectrum (FDSS) uplink is studied in the case when there is GSM interference sources in the adjacent frequency. A simple analytical method which study the effect of the adjacent GSM on the uplink capacity of the FDSS system is studied assuming collocated base stations of both systems. The FDSS transmitter and receiver models are shown. A model to calculate the interference as a function of the GSM users is presented. Some numerical examples are given. It is noticed that the interference effect is high for frequency separation of 1820 KHz or less. The effect of the GSM system is quasi when the frequency separation is higher than 2250 KHz.
Keywords :
3G mobile communication; adjacent channel interference; cellular radio; channel capacity; code division multiple access; multimedia communication; radio links; radio receivers; radio reception; radio transmitters; spread spectrum communication; FDSS transmitter-receiver model; FDSS uplink capacity; GSM interference source; adjacent GSM system; cost effective network evolution; frequency diversity spread spectrum; groupe speciale mobile; mobile multimedia network; third-generation system; Downlink; Electronic mail; Frequency diversity; GSM; Interchannel interference; Macrocell networks; Multiaccess communication; Spread spectrum communication; Telecommunication standards; Transmitters;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on
Print_ISBN :
0-7803-8523-3
DOI :
10.1109/PIMRC.2004.1368393
