Statistical Wireless Channel Propagation Characteristics in Underground Mines at 900MHz

Wireless communication carries a great importance for underground mines from the perspective of safety, security, and industry. However, it is observed that commercial wireless communication systems in underground mines may not work always properly because of different environmental characteristics. In order to have wireless communication systems which work properly under the harsh environments such as underground mines, it is very important to understand the characteristics of the radio propagation within those environments. This work presents experimental results of wideband radio propagation at 900 MHz in a real underground environment. Several important wireless propagation channel parameters are obtained.