搜索结果: 1-15 共查到“计算机科学技术 mesh”相关记录49条 . 查询时间(0.169 秒)
在智能电网（ｓｍａｒｔｇｒｉｄ，ＳＧ）接入层的无线 Ｍｅｓｈ网络（ｗｉｒｅｌｅｓｓｍｅｓｈｎｅｔｗｏｒｋｓ，ＷＭＮｓ）应用中，针对数据流过
度地集中在关键节点而导致数据拥塞问题发生，提出一种基于平衡树的无线 Ｍｅｓｈ网络路由算法。在传统 ＡＯＤＶ
（ａｄｈｏｃｏｎｄｅｍａｎｄｄｉｓｔａｎｃｅｖｅｃｔｏｒｒｏｕｔｉｎｇ）算法的基础上，使用平衡树模型，综合考虑节点剩余容量和转发数据所需
的路由...
支持多业务传输的天基Mesh网络机会路由优化算法
会路由 多业务 Mesh网络 层次分析法
2018/2/8
针对天基骨干Mesh网络业务类型多样、计算能力相对不足的特点以及SOAR路由算法拥塞控制机制不足、确认机制不可靠以及不同业务QoS保障需求有差异的问题,提出了具有可靠联合确认机制并支持多业务传输的机会路由算法。该算法以预期成功传输次数来描述整体链路性能,有效实现了网络负载均衡与链路拥塞控制;算法兼顾多样化业务的传输,设计了一种路由路径自适应调整策略,以实现路径选择与业务类型的自适应调整。仿真结果表...
Liszt: A Domain Specific Language for Building Portable Mesh-based PDE Solvers
compiler analysis and program transformations, programming and runtime environments for high performance and high throughput computing
2016/5/24
Heterogeneous computers with processors and accelerators are becoming widespread in scientific computing. However,it is difficult to program hybrid architectures and there is no commonly accepted prog...
认知无线Mesh网络中资源节约的最小信道冲突值组播路由算法
认知无线Mesh网络 组播 频谱分配 粒子群优化
2016/7/27
认知无线Mesh网络中满足QoS约束的多目标优化组播路由问题比单目标优化组播问题更加复杂,为了快速求解认知无线Mesh网络中满足Qos约束的以最小化资源消耗与最小化信道冲突值的多目标优化组播路由问题,提出了一种基于粒子群优化算法的问题求解框架,包括问题描述、粒子编码与粒子初始化、适应度函数、粒子飞行、粒子变异、粒子消环。粒子由表示节点之间连接关系的带权邻接矩阵表示,重新定义了用于粒子飞行的3种运算...
Describing and Computing Model of the Topological Relation in Spherical Surface Quaternary Triangular Mesh
Spherical surface QTM Euler_number Topological relation
2015/12/3
Spherical surface QTM (Quaternary Triangular Mesh) is one of an efficient tool to deal with the global data because of its advantages of multi-resolution and hierarchy. Based on characters of spherica...
Combined Feature-Driven Richardson-Based Adaptive Mesh Refinement for Unsteady Vortical Flows
Combined Feature-Driven Richardson-Based Adaptive Mesh Unsteady Vortical Flows
2015/7/3
An adaptive mesh refinement strategy that couples feature detection with local error estimation is presented. The strategyfirst selects vortical regions for refinement using feature ...
A CONSERVATIVE MESH-FREE SCHEME AND GENERALIZED FRAMEWORK FOR CONSERVATION LAWS
conservation law advection equation mesh-free scheme fi nite diff erence fi nite volume
2015/7/3
We present a novel mesh-free scheme for solving partial differential equations. We first derive a conservative and stable formulation of mesh-free first derivatives. We then show tha...
3D Flapping Wing Simulation with High Order Spectral Difference Method on Deformable Mesh
3D Flapping Simulation Spectral Diff erence Method Deformable Mesh
2015/7/3
In this paper we carry out computational studies of three-dimensional flow over flapping wings. The problems we have investigated include, firstly, three-dimensonal simulation of ...
Dynamic Mesh Deformation for Adaptive Grid Refinement with Staggered Spectral Difference and Finite Volume Mesh
Dynamic Mesh Deformation Adaptive Grid Staggered Spectral Diff Finite Volume Mesh
2015/7/3
Better computational efficiency and reduced computational cost for high order CFD method are areas of active research. In this study, we investigate the potential of using dynamic deforming mesh ...
Feature-Driven Cartesian Adaptive Mesh Refinement in the Helios Code
Feature-Driven Cartesian Adaptive Mesh Refinement Helios Code
2015/7/3
Feature-detection methods are applied to drive Cartesian-based adaptive mesh re nement for improved vortex resolution in aerodynamics ow elds. Several approaches such as the Q-criterion, the eigenvalu...
A Combined Quadtree/Delaunay Method for 2D Mesh Generation
mesh delaunay antenna finite element method domain decomposition scientific computing
2014/12/8
Unstructured simplicial mesh is an integral and critical part of many computational electromagnetics methods (CEM) such as the finite element method (FEM) and the boundary element method (BEM). Mesh q...
针对第3版WLAN鉴别基础设施（WAI）协议用于建立WLAN Mesh安全关联时所存在的问题，提出了一种基于改进WAI协议的WLAN Mesh安全关联方案。通过性能对比分析，该方案提高了WLAN Mesh安全关联的性能，特别是降低了认证服务器（AS）的负载。为了适用于可信计算环境，继而在该方案的基础上提出了一种可信计算环境下的WLAN Mesh安全关联方案。此外，利用串空间模型（SSM）证明了这2...
802.11s无线Mesh网络中协作多样性感知的路由度量和协作路由协议
无线Mesh网络 协作多样性 路由协议
2011/12/26
提出了802.11s无线Mesh网络中协作多样性感知的路由度量,并提出了适应无线Mesh网络特点的协作式路由协议(CDARP)与协作媒体访问控制协议(CMAC).通过构建协作虚拟节点、计算协作链路度量,CDARP-CMAC能够选择最合理的路径进行协作数据传输.实验结果表明,与最优路径的协作机制相比,CDARP-CMAC协议提高了网络有效吞吐量5%~13%;同时降低了数据包丢包率5%~10%.
认知无线Mesh网络中基于干扰模型的信道分配策略
认知无线Mesh网 信道分配 路由
2010/8/26
从信道干扰的角度为认知无线Mesh网络提出一种新的信道分配策略。首先对网络进行分层并按层对节点设置不同的层数权值，以此来选择最佳路径，再利用信道干扰模型来选择最佳信道。新策略有效整合了路由和信道分配过程，通过路由的实现来协助节点的信道分配以获得整个网络的最优化性能。仿真结果表明，新算法相比于无线多信道网络中基于链接的信道分配算法，在时延、吞吐量上有明显的优势。