A Study on Communication Channel Estimation for Emergency Networks in Underground Mining Environment

Abstract

Abstract. Monitoring networks in underground mining environment should provide many of mobile devices with the same time multi-access communications, high speed data transmission, and low transmit power capability. Bandwidth limitations, propagation loss, noise, interference, time variance, and frequency selective fading caused by multipath propagation can bring high symbol error ratio in high rate transmission. Communication systems can enhance their performance by using anti multi-path fading techniques only when they could make precise and real time estimation of fading coefficients of multipath channel. The purpose of this paper is for optimizing the wireless network system designs, and providing theoretical guides and technology programs for promoting the anti-multipath fading performance of wireless emergency networks.