Analysis and Performance Evaluation of Conditional Handover in 5G Beamformed Systems
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Higher frequencies that are introduced into 5G networks cause rapid signal degradations and challenge user mobility. In recent studies, a conditional handover procedure has been adopted for 5G networks to enhance user mobility robustness. In this paper, mobility performance of the conditional handover has been analyzed for 5G mm-Wave systems with beamforming. In addition, a random access procedure is proposed that increases the chance of performing contention-free random access during the handover, which reduces signaling and interruption time. Results show that the overall failure performance improves by conditional handover scheme and the contention-free random access rate increases for proposed random access scheme.
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