| Title | Statistical analysis of time-varying channel for underwater acoustic communication and network |
| Publication Type | Conference Paper |
| Year of Publication | 2021 |
| Authors | Yan, Honglu, Ma, Tianlong, Pan, Chenyu, Liu, Yanan, Liu, Songzuo |
| Conference Name | 2021 International Conference on Frontiers of Information Technology (FIT) |
| Keywords | Acoustic measurements, Communication networks, fading channels, fading fluctuation, Fluctuations, Metrics, pubcrawl, resilience, Resiliency, Scalability, security, Time Frequency Analysis, Time measurement, Time-frequency Analysis, time-varying channels, time-varying difference, underwater acoustic channel measurement, Underwater Acoustic Communication Network |
| Abstract | The spatial-temporal random variation characteristics of underwater acoustic channel make the difference among the underwater acoustic communication network link channels, which make network performance difficult to predict. In order to better understand the fluctuation and difference of network link channel, we analyze the measured channel data of five links in the Qiandao Lake underwater acoustic communication network experiment. This paper first estimates impulse response, spread function, power delay profile and Doppler power spectrum of the time-varying channel in a short detection time, and compares the time-frequency energy distribution characteristics of each link channel. Then, we statistically analyze the discreteness of the signal to noise ratio, multipath spread and Doppler spread parameter distributions for a total of145 channels over a long observation period. The results show that energy distribution structure and fading fluctuation scale of each link channel in underwater acoustic communication network are obviously different. |
| DOI | 10.1109/FIT53504.2021.00020 |
| Citation Key | yan_statistical_2021 |
Statistical analysis of time-varying channel for underwater acoustic communication and network