Optimal Power and Bandwidth Allocation for Multiuser Video Streaming in UAV Relay Networks
| Autor: | Yan Chen, Yang Hu, Hangjing Zhang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Computer Networks and Communications
Computer science Real-time computing Aerospace Engineering 020302 automobile design & engineering Lyapunov optimization 02 engineering and technology Power (physics) law.invention Bandwidth allocation 0203 mechanical engineering Transmission (telecommunications) Relay law Automotive Engineering Bit rate Bandwidth (computing) Quality of experience Electrical and Electronic Engineering Mobile device |
| Zdroj: | IEEE Transactions on Vehicular Technology. 69:6644-6655 |
| ISSN: | 1939-9359 0018-9545 |
| DOI: | 10.1109/tvt.2020.2985061 |
| Popis: | We all have encountered unsatisfactory video viewing experience with mobile devices in hot spot areas where a crowd of people are demanding video streaming simultaneously. One possible solution to relieve the problem is to use the unmanned aerial vehicle (UAV) as a relay to improve the quality-of-experience (QoE). In this paper, we focus on the allocation of bandwidth and transmission power for multiuser video streaming in UAV relay networks. Our goal is to maximize the total long-term QoE of users, which are determined by the freezing time and the bit rate of video. We employ the Lyapunov optimization theory to transform the original problem with long-term average form into the drift-plus-penalty problem, and propose a decentralized allocation scheme using alternative ascending clock auction to derive the optimal solution. Simulations are conducted to demonstrate the superiority of the proposed method. |
| Databáze: | OpenAIRE |
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