在移动服务器辅助的移动边缘计算中,用于任务分配的能源关键性基于避免的延迟最小化群算法
Xiaoyao Huang1, Bo Lei1, Guoliang Ji2
1Research Institute China Telecom, Beijing 102209, China.
Sensors (Basel, Switzerland)
|July 14, 2023
概括
这项研究通过平衡任务卸载延迟和移动服务器运行时间来优化移动边缘计算. 拟议的算法提高了移动用户的系统服务质量 (QoS).
科学领域:
- 计算机科学 计算机科学
- 电气工程 电气工程
- 网络工程 网络工程
背景情况:
- 移动边缘计算 (MEC) 对延迟敏感服务至关重要.
- 移动服务器可以协助固定边缘服务器进行任务卸载.
- 在MEC中优化任务分配和能源管理是一项挑战.
研究的目的:
- 为了最大限度地减少移动服务器辅助边缘计算的系统延迟.
- 通过延长移动服务器运行时间来提高整体系统服务质量 (QoS).
- 解决NP-hard问题,即对任务分配和能源管理进行联合优化.
主要方法:
- 他把这个问题用混合整数编程 (MIP) 问题来表述.
- 开发了一个基于避免的动态能量关键性延迟最小化殖民地算法 (EACO).
- 分析了算法的计算复杂性.
主要成果:
- EACO算法有效地平衡了任务卸载延迟和移动服务器操作时间.
- 与基准算法相比,模拟显示出更高的性能.
- 拟议的方法从长期的角度来看,增强了系统的QoS.
结论:
- 在移动服务器辅助的MEC中,EACO算法为联合优化提供了有效的解决方案.
- 延长移动服务器运行时间是改善长期系统 QoS 的关键.
- 这项研究提供了一种新的方法,可以在边缘计算网络中延迟最小化和能源管理.
相关概念视频
Distributed Loads: Problem Solving
676
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
676
Short-distance Transport of Resources
16.2K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
16.2K
Fast Decoupled and DC Powerflow
239
The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
239
Maximum Power Flow and Line Loadability
138
The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
138
Energy to Drive Translocation
2.1K
Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
Generally, polypeptides are unfolded by two distinct...
Generally, polypeptides are unfolded by two distinct...
2.1K
Maximum Power Transfer
292
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
292


