Abstract
We present a framework to analyse the latency budget in wireless systems with Mobile Edge Computing (MEC). Our focus is on teleoperation and telerobotics, as use cases that are representative of mission-critical uplink-intensive IoT systems with requirements on low latency and high reliability. The study is motivated by a general question: What is the optimal compression strategy in reliability and latency constrained systems? We address this question by studying the latency of an uplink connection from a multi-sensor IoT device to the base station. This is a critical link tasked with a timely and reliable transfer of potentially significant amount of data from the multitude of sensors. We introduce a comprehensive model for the latency budget, incorporating data compression and data transmission. The uplink latency is a random variable whose distribution depends on the computational capabilities of the device and on the properties of the wireless link. We formulate two optimization problems corresponding to two transmission strategies: (1) Outage-constrained, and (2) Latency-constrained. We derive the optimal system parameters under a reliability criterion. We show that the obtained results are superior compared to the ones based on the optimization of the expected latency.
Original language | English |
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Title of host publication | ICC 2022 - IEEE International Conference on Communications |
Number of pages | 6 |
Publisher | IEEE |
Publication date | 2022 |
Pages | 5029-5034 |
ISBN (Print) | 978-1-5386-8348-4 |
ISBN (Electronic) | 978-1-5386-8347-7 |
DOIs | |
Publication status | Published - 2022 |
Event | 2022 IEEE International Conference on Communications, ICC 2022 - Seoul, Korea, Republic of Duration: 16 May 2022 → 20 May 2022 |
Conference
Conference | 2022 IEEE International Conference on Communications, ICC 2022 |
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Country/Territory | Korea, Republic of |
City | Seoul |
Period | 16/05/2022 → 20/05/2022 |
Sponsor | et al., Huawei Technologies Co., Ltd., LG, Qualcomm, Samsung, Technology Innovation Institute (TII) |
Series | I E E E International Conference on Communications |
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Volume | 2022-May |
ISSN | 1550-3607 |
Bibliographical note
Funding Information:ACKOWLEDGMENT This work is supported by the European Horizon 2020 project TACTILITY (grant agreement number 856718).
Publisher Copyright:
© 2022 IEEE.
Keywords
- low-latency high-reliability
- mission-critical communications
- mobile edge computing
- teleoperation
- telerobotics