A Mathematical Model for Power Consumption in Small-Cell Embedded Macro Cell Networks

• Main Authors: Wei-Luen Li, 李偉綸
• Other Authors: Tsang-Ling Sheu
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/pujzy8

碩士 === 國立中山大學 === 通訊工程研究所 === 106 === In this thesis, we propose a double cell embedded macro cell (DCEMC) networks architecture. We consider the coverage of small cells may overlap in a macro cell. The movement of user equipment (UE) may cause the signal switch from macro cell to a small cell. It is also possible to switch form one of the small cells to the macro cell. Because the UE’s movement changes the transmission distance and thus leads to change the total transmission power of the macro cell and the small cells within the macro cell. In this thesis, we establish a mathematical model with state transitions by using probability. We divide different states based on the location of UE and its connection. The state transition rate is obtained according to the velocity of the UE and the channel usage of the small cell. We can calculate the probability of each state from the mathematical model. We multiply each state probability by the square of the transmission radius to obtain the total transmission power of the macro cell and the small cells within the macro cell. Given the path loss factor, we can derive the relationship of the cell’s coverage and the lowest power consumption.