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2. Age of Information: A Two-Sensor Status Update System Monitoring The Same Process

Author

Yang, Tianqing, Chen, Zhengchuan, Yang, Howard H., Wang, Min, Jia, Yunjian, and Quek, Tony Q. S.

Subjects
Computer Science - Networking and Internet Architecture
Abstract

This work studies the average age of information (AoI) of a monitoring system in which two sensors are sensing the same physical process and update status to a common monitor using their dedicated channels. Generally, using redundant devices to update the status of a process can improve the information timeliness at the monitor, but the disordered arrivals of updates also make the AoI analysis challenging. To that end, we model the system as two M/M/1/1 parallel status updating queues. By leveraging tools from stochastic hybrid system (SHS), we provide a general approach to analyze the average AoI, whereas a closed-form expression can be obtained when the status arrival rates and/or the service rates are the same for the two sensors. Numerical results validate the correctness of the theoretical analysis.

Published
2022

9. Abstract 6080: IL1RAP augments Cysteine metabolism and drives oxidative stress adaptation and lung metastasis in Ewing sarcoma

Author

Zhang, Hai-Feng, primary, El-Naggar, Amal M., additional, Cheng, Hongwei, additional, Prudova, Anna, additional, Delaidelli, Alberto, additional, He, Jian-Zhong, additional, Negri, Gian Luca, additional, Lizardo, Michael, additional, Yang, Tianqing, additional, Morin, Gregg, additional, Li, Wei, additional, Dimitrov, Dimiter S., additional, and Sorensen, Poul H., additional

Published
2020
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