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Erschienen in:
2018 | OriginalPaper | Buchkapitel
Radial Velocity Based CoMP Handover Algorithm in LTE-A System
verfasst von : Danni Xi, Mengting Liu, Yinglei Teng, Mei Song
Erschienen in: Communications and Networking
Verlag: Springer International Publishing
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Abstract
In the Long Term Evolution-Advanced (LTE-A) systems, coordinated Multi-Point (CoMP) transmission/reception technology is widely used to improve cell-edge throughput and system throughput. With the introduction of CoMP technology, handover scenes have changed and traditional handover algorithms are no longer able to meet the requirements of current handover scenes. Different from traditional CoMP handover trigger mechanism, we adopt the event based handover trigger mechanism to update the CoMP coordinating set (CCS) and transmission points (CTP). Furthermore, under the constraints of the reference signal received power (RSRP) and the load of the base stations (BSs), we propose the cycle selection algorithm to choose CCS and CTP based on the radial velocity and SINR. Simulation results show that the proposed handover algorithm can effectively reduce the total number of handover, system delay and signaling overhead in the practical CoMP system.