Average Peak Age of Information in Underwater Information Collection with Sleep-scheduling
作者：王景璟 时间：2022年05月23日 12:25 点击数：
语言：English
发表刊物：IEEE Transactions on Vehicular Technology ( Volume: 71, Issue: 9, September 2022)
发表日期：2022年5月23日
摘要：
We investigate the peak age of information (PAoI) in underwater wireless sensor networks (UWSNs), where Internet of underwater things (IoUT) nodes transmit the latest packets to the sink node, which is in charge of adjusting the sleep-scheduling to match network demands. In order to reduce PAoI, we propose active queue management (AQM) policy of the IoUT node, beneficially compresses the packets having large waiting time. Moreover, we deduce the closed-form expressions of the average PAoI as well as the energy cost relying on probability generating function and matrix-geometric solutions. Numerical results verify that the IoUT node relying on the AQM policy has a lower PAoI and energy cost in comparison to those using non-AQM policy.
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