移动Ad Hoc云中基于能量收集的分布式卸载方案研究

Research on Distributed Offloading Scheme Based on Energy Harvesting in Mobile Ad Hoc Cloud

在物联网快速发展的驱动下,移动Ad Hoc云计算和能量收集(EH)技术通过共享邻近设备的闲置资源满足数据处理等需求,实现绿色通信。然而,由于Ad Hoc云网络的时变性以及EH的随机不稳定性,合理的任务卸载方案研究面临着严峻的挑战。针对以上问题,该文运用Lyapunov优化理论和博弈论,提出一种分布式动态卸载方案。理性的终端设备不可能无偿地为其他终端设备服务,为了鼓励终端设备积极参与计算卸载过程,提出一种基于动态报价的激励机制。相比于现有方案,仿真结果表明所提方案可以有效提升系统收益,稳定电池能量和减少任务队列积压。

Driven by the rapid development of the Internet of Things, mobile Ad Hoc cloud computing and Energy Harvesting(EH) technologies meet the needs of data processing by sharing the idle resources of adjacent devices, and realize green communication. However, due to the time-varying nature of Ad Hoc cloud networks and the stochastic instability of EH, the research on reasonable task offloading schemes faces severe challenges. Considering the above problems, a distributed dynamic offloading scheme is proposed in this paper by using Lyapunov optimization theory and game theory. It is impossible for rational terminal equipment to serve other terminal equipment for free, in order to encourage terminal equipment to participate actively in the calculation offloading process, an incentive mechanism based on dynamic quotation is proposed in this paper.Compared with the existing schemes, the simulation results show that the proposed scheme can effectively improve system revenue, stabilize battery energy and reduce task queue backlog.