Large scale warehouses often apply the RFID Network Planning (RNP) strategy to efficiently track assets, which can lead to significant revenue gain. For this reason, this research has developed a three dimension RFID network planning model that can improve warehouse management. The mathematical model of the RFID network planning is concerned with two major issues. The first one is the correlation between the reader height and the rack levels. The second issue is to specify the optimal tag coverage based on the elliptical interrogation reader range. The DBFA algorithm is used as a method to evaluate the deterministic indicators in NP hard problems. The current work has provided much superior results for three dimension large scale condition and observed the effectiveness in traditional warehouse layout. The research has presented a new perspective in achieving maximum volumetric coverage with optimal number of deployed readers.