Reliability-oriented optimization of computation offloading for cooperative vehicle-infrastructure systems

Zhou, Jianshan, Tian, Daxin, Wang, Yunpeng, Sheng, Zhengguo, Xuan, Xuting and Leung, Victor (2018) Reliability-oriented optimization of computation offloading for cooperative vehicle-infrastructure systems. IEEE Signal Processing Letters. ISSN 1070-9908

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Computation offloading is critical for mobile applications that are sensitive to computational power, while dynamic and random nature of vehicular networks makes it challenging to guarantee the reliability of vehicular computation offloading. In this letter, we propose a reliability-oriented stochastic optimization model based on dynamic programming for computation offloading in the presence of the deadline constraint on application execution. Specifically, a theoretical lower bound of the expected reliability of computation offloading is derived, and then an optimal data transmission scheduling mechanism is proposed to maximize the lower bound with consideration of randomness in vehicle-to-infrastructure (V2I) communications. Experimental results demonstrate that our mechanism can outperform the conventional scheme and benefits vehicular computation offloading in terms of reliability performance in stochastic situations.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Research Centres and Groups: Communications Research Group
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication Including telegraphy, telephone, radio, radar, television
Depositing User: Zhengguo Sheng
Date Deposited: 15 Nov 2018 10:32
Last Modified: 15 Nov 2018 10:32

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