Optimization of PCI conflict detection in LTE-advanced using collision and confusion methods considering reuse distance algorithm

Abstract

PCI (Physical Cell Identity) is a configuration of cell identity used to regulate the neighboring system of each cell that correspond a unique combination of PSS (Primary Synchronization Signals) and SSS (Secondary Synchronization Signals). The configuration of PCI should be planned well to reduce interference and improve the network performance. The issue of PCI assignment is poorly planned which caused the risk of network conflict indicating Collisions and Confusions in East Jakarta decreasing the KPI performance. The KPI aspects which affect the successfully of handover are the RSRP value (above −100 dBm) is 80%, the RSRQ level (above −15 dB) is 85%, the SINR level (above 10 dB) is 80% and the throughput level (above 20Mbps) is 85%. This paper proposed method and design of an Automatic Distribution of Physical Cell Identity that will be implemented in East Jakarta considering reuse distance algorithm. This method and design has been selected randomly based on reuse distance to reach optimal performance for each cells to avoid collision and confusion and to increase the KPI performance. Thus, a simulation has been made to illustrate the correlation between re-allocation PCI and KPI measurement such as RSRP, RSRQ, SINR and Throughput.