Queue-Aware Joint Optimization of Offloading and Transmission in Wireless Mobile Edge Computing Systems

被引：0

作者：

Teng Y.-L. ^{[1
]}

Liu W. ^{[1
]}

Ouyang W.-P. ^{[2
]}

Li K. ^{[3
]}

Song M. ^{[1
]}

机构：

[1] School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing

[2] Huawei Technologies CO., LTD, Shenzhen

[3] Institute of Standard Metrology, China Academy of Railway Sciences, Beijing

来源：

Beijing Youdian Daxue Xuebao/Journal of Beijing University of Posts and Telecommunications | 2019年 / 42卷 / 03期

关键词：

Convex optimization; Lyapunov optimization; Mobile edge computing; Precoding;

D O I：

10.13190/j.jbupt.2018-256

中图分类号：

学科分类号：

摘要：

Considering task queue model on both user and mobile edge computing (MEC) server side, a dynamic computing task offloading problem in multi-user-multi-MEC-server system is proposed. To find the optimal offloading and corresponding uplink precoding strategy, a long-term average overhead containing delay and power consumption of the whole system optimization problem is formulated. The original problem is transformed into a single-stage cost target optimization problem based on Lyapunov optimization method and further converted into a typical DC programming problem by utilizing successive approximation and semi-definite relaxation. Simulation shows that the proposed scheme characterized by optimizing precoding design can meet the lower delay and power consumption requirements. © 2019, Editorial Department of Journal of Beijing University of Posts and Telecommunications. All right reserved.

引用

页码：14 / 20

页数：6

共 9 条

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