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| In dense small cell networks, the coverage of a typical cell is small and handover is expected to happen frequently when user moves. Thus a two stage neighboring cell list (NCL) selection (TSNS) algorithm is proposed to improve handover performance. In the first stage, TSNS updates cell specific preferences of neighboring cells based on the load, signal quality and resource utilization of the target cells. In the second stage, user specific preference is calculated considering the received signal quality, surviving time and moving direction of user. Cell specific and cell user specific preferences are merged to construct the resultant NCL. Compared with existing methods which adopt the same NCL for all users in a cell, the novelty of TSNS is that different users can have different NCLs. Simulation results prove that TSNS can yield short NCL list while ensuring good handover performance. |
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| Keywords:Neighboring Cell List, Small Cell, Handover, Direction, Priority, System capacity |
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