Comparison of three diversity handover algorithms by using measured propagation data

A diversity handover simulator using measured propagation data is introduced. Furthermore, three different diversity handover algorithms are compared and the comparison results are introduced in this paper. The algorithms used in the study were the basic cdmaOne algorithm, modified cdmaOne algorithm and an algorithm with a threshold relative to the strongest received pilot channel Ec/Io. The most stable performance in terms of diversity handover (DHO) probability can be achieved with the slope algorithm. The basic cdmaOne algorithm tends to be very sensitive to the interference situation. The algorithm, which makes the decision based on the relative differences of the received pilot Ec/Io levels, rather than on absolute thresholds, shows moderate change in both the active set update period and in the DHO probability in changing interference conditions