Reliability-Oriented Optimization of Computation Offloading for Cooperative Vehicle -Infrastructure Systems

被引：24

作者：

Zhou, Jianshan ^{[1
]}

Tian, Daxin ^{[1
]}

Wang, Yunpeng ^{[1
]}

Sheng, Zhengguo ^{[2
]}

Duan, Xuting ^{[1
]}

Leung, Victor C. M. ^{[3
]}

机构：

[1] Beihang Univ, Beijing Adv Innovat Ctr Big Data & Brain Comp, Sch Transportat Sci & Engn, Beijing Key Lab Cooperat Vehicle Infrastruct Syst, Beijing 100191, Peoples R China

[2] Univ Sussex, Dept Engn & Design, Richmond 3A09, Surrey, England

[3] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

来源：

IEEE SIGNAL PROCESSING LETTERS | 2019年 / 26卷 / 01期

基金：

英国工程与自然科学研究理事会; 中国国家自然科学基金;

关键词：

Cooperative vehicle infrastructure system (CVIS); vehicular communication; mobile edge computing; computation offloading; dynamic programming; MOBILE; INTERNET;

D O I：

10.1109/LSP.2018.2880081

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 the 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 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.

引用

页码：104 / 108

页数：5

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