研究目的
Investigating the effectiveness of a novel cell outage detection algorithm based on incoming handovers statistics in LTE networks.
研究成果
The proposed cell outage detection algorithm based on incoming handovers statistics is able to detect most outage situations in a real network, with the main limitation being its inability to detect outages in cells with very low traffic. The algorithm represents a significant improvement over existing methods by utilizing neighbor measurements to detect outages even when the eNB is affected.
研究不足
The main limitation of the algorithm is that the cell outages that affect cells with very low traffic cannot be detected. However, these outage situations have a low impact in the user experience and in the overall network performance.
1：Experimental Design and Method Selection:
The study evaluates a novel COD algorithm based on incoming handovers statistics against other approaches using both simulations and real network tests.
2：Sample Selection and Data Sources:
A simulation scenario composed of 75 cells from a real network and a live LTE network with approximately 8000 LTE cells.
3：List of Experimental Equipment and Materials:
LTE system level simulator implemented in MATLAB.
4：Experimental Procedures and Operational Workflow:
The COD algorithms were activated during simulations and real network tests to assess their effectiveness in detecting cell outages.
5：Data Analysis Methods:
The effectiveness of each COD method was evaluated in terms of false positive rate and false negative rate.
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