Research on Optimization Measures of Zigbee Network Connection in an Imitated Mine Fading Channel

• DOI: 10.3390/electronics10020171
• Publication Date: 2021-01-14T18:17:42Z
• Authors: Zhihai Liu; Yuxuan Wang; Qingliang Zeng; Yang Yang; Zhenrui Dai
• Keywords: Zigbee; Nakagami fading channel; O-QPSK demodulation based on feedforward timing; Zigbee networking; Improved-LEACH protocol; 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Based on the background of a mine, this study aimed to improve underground wireless communication. The selected Zigbee technology from many technologies as basis, expounded technical advantages and disadvantages, addressed its disadvantages. First, modulation was improved. This article selects describes O-QPSK three technologies, thereby addressing synchronization difficulties caused by inherent reasons, proposes method based feedforward timing. Moreover, excellent performance achieved in follow-up simulation experiment. For networking problems, series mechanisms are proposed address several problems large-scale networking: node offline, energy waste, signal delay, etc. five main an improved protocol two significant perspectives. problem disconnection is divided into parts. Considering different status edge nodes important network, for detection self-repair, essential nodes. can compensate loss at specific time. network Improved-LEACH alleviate delay problem. one verified test, reasonable line with expectations.