Wireless multi-hop Ad hoc networks based on OLSR for underground coal mine

This paper presents wireless multi-hop Ad hoc networks based on OLSR protocol for the special environments in underground mine to improve existing coal mine wireless network deficiencies. It has the characteristics of high bandwidth, low latency, and easy deployment, compatibility with coal mine industrial Ethernet and multimedia transmission. We designed and implemented coal mine coverage network, safety wireless node and mobile ad hoc network route protocol. For routing protocol, we replace hop count route metric with expected transmission count to get a better performance. Experiments have been performed in a simulation environment in order to guide the MANET deployment in underground mine.