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Soft Handover and Power Control in Loaded UMTS Networks

This paper presents results in soft handover and uplink power control for UMTS obtained by simulations. The simulations were done using created map that covers all major propagation environments. The objective was to determine the behaviour of uplink power control and the influence of soft handover on network performance in a loaded network depending on the soft handover margin. Simulations were done without soft handover, and for 3 dB and 6 dB margins, with various network loading. It was found that the 3 dB handover margin provides optimum.

UMTS; soft handover; handover margin; power control; loaded network

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