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In this paper, we analyze the end-to-end delay bound of the uplink transmission in an unmanned aerial vehicle (UAV)-assisted wireless network, where the UAV acts as the edge caching node to enhance the quality of service for content providers. Due to the emerging wireless connected intelligent devices, it is expected that the uplink traffic will grow dramatically. Recently, cache-enabled UAV base stations (UAV- BSs) are proposed to relieve the massive upload contents from neighboring devices. Meanwhile, since the storage tasks are executed close to the devices, the network latency can be reduced, which is a promising way to provide delay-sensitive services. To understand the performance impact of UAV-based wireless caching, we adopt network calculus to analyze the upper bound of uplink latency. The proposed model takes into account the transmission failure probability caused by the mobility of UAVs. Our numerical results confirm the performance gain of using cache-enabled UAV-BSs in wireless mobile networks. This work can provide insights for the design of ultra-reliable and low latency communications in UAV systems.
|Title of host publication||2020 IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2020 - Proceedings|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|State||Published - Apr 2020|
|Event||2020 IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2020 - Seoul, Korea, Republic of|
Duration: 25 May 2020 → 28 May 2020
|Name||2020 IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2020 - Proceedings|
|Conference||2020 IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2020|
|Country/Territory||Korea, Republic of|
|Period||25/05/20 → 28/05/20|
- delay analysis.
- network calculus
- Unmanned aerial vehicle (UAV)
- wireless edge caching
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High Security and Low Latency Data Transmission Platform for 5g-Connected Unmanned Aerial Vehicle(1/2)
1/05/19 → 30/04/20