In this thesis interference rejection algorithms with one antenna have
been studied. Several versions of two different algorithms have been
investigated. The investigation has been performed by means of link
level and system level simulations in a GSM system.
The link level results show that one of the algorithms gives considerable
improvements at a modest increase in computational complexity.
The system level results show that one conventional mobile in a GSM
system can be replaced by approximately 1.8 mobiles equipped with the
new algorithm without degrading the quality. This gives an increase in
system capacity of up to 80 %.
Link level simulations was also performed with
EDGE-PSK-interference. The results show that the algorithm
improves this situation, too.
The main conclusion is that one of the algorithms has the ability to
improve the capacity and the quality in GSM systems. Furthermore,
this algorithm could considerably increase the data rate in the EDGE
downlink at low CIR when the GMSK-modulation is used.
