关键词: 移动边缘计算, 移动云计算, 计算卸载技术, 卸载决策, D2D技术

Abstract:

Computation offloading technology, as a key technology of Mobile Edge Computing（MEC）, can effectively solve the problems of weak computing power, time extension, and high energy consumption of terminal devices through reasonable offloading decisions. Firstly, the concept, reference architecture, deployment schemes and typical application scenarios of MEC are introduced. Then, the current research state of computation offloading technology are elaborated in detail from the goal of offloading decision, the coarse-grained offloading methods, fine-grained offloading methods and the offloading methods under the cooperation of MEC and Device-to-Device（D2D） technology, it analyzes and summarizes the existing research results on these areas. Fianlly, the future research direction of these areas is considered, and some problems and challenges faced are given on these areas.

Key words: mobile edge computing, mobile cloud computing, computation offloading technology, offloading decision-making, D2D technology