Channel characteristics analysis in semi-basement scenarios for smart meter communication systems

The smart meter communication system has substantial application value for the construction and upgrading of the entire power system. The deployment of the transmitter (Tx) of the smart meter system in the residential scenarios is vexed by the need for more theoretical support. This paper mainly studies the communication channel between the Tx at semibasement and receiver (Rx) at outdoor. The design of an effective communication system relies on an accurate understanding of channel characteristics. Channel measurements and ray-tracing channel modeling are conducted to obtain channel data. The influence of different positions at same semi-basement is studied. Typical channel characteristics are analyzed, such as power delay profile (PDP), power angular profile (PAP), root-mean-square (RMS) delay spread (DS), channel capacity, received power, and path loss. The influence of different semi-basement placements and different floor heights is also compared. Besides, the channel measurements and simulation data fit well, which can illustrate the validity and reliability of the acquired channel data. This paper can provide theoretical support for the design and optimization of smart meter communication systems in semi-basement scenarios.