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基于文化遗传算法的QoS感知的服务组合
服务组合 QoS感知 文化遗传算法 服务选择
2019/3/12
为了提高服务组合的效率，提出1种改进的基于文化遗传算法的QoS感知的服务组合方法。首先构建社会种群和信仰双层空间，然后利用接收函数从社会种群中提取种群进化学习到的知识并更新信仰空间，进而利用信仰空间来引导社会种群进化，加快算法的收敛性，提高组合效率。研究结果表明：与传统的文化遗传算法和经典的遗传算法相比，本文提出的算法收敛所需的迭代次数明显降低，执行效率和收敛速度均有所提高。
归纳了煤矿井下传感数据业务、语音业务和视频业务的发送频次、带宽、时延和方向等特点以及对网络服务质量保障的要求，提出了一种煤矿井下无线多媒体传感器网络区分服务的QoS-MAC协议。通过为传感数据业务、语音业务和视频业务设计不同的竞争窗口，实现了3种业务的区分服务，可保障3种业务不同的服务质量需求。建立了3种业务退避级数和退避时间计数器的Markov链模型，分析了区分服务的QoS-MAC协议的饱和吞吐...
International Workshop On Assured Cloud Computing And QoS Aware Big Data
International Workshop Assured Cloud Computing QoS Aware Big Data
2017/3/21
WACC draws together researchers, practitioners, and thought leaders from government, industry, and academia. The workshop provides a forum of dialogue centered upon the development and advancement of ...
Energy-Efficient Power and Rate Control with QoS Constraints:A Game-Theoretic Approach
Energy-Efficient Power Rate Control QoS Constraints Game-Theoretic Approach
2015/9/29
A game-theoretic model is proposed to study the cross-layer problem of joint power and rate control with quality of service (QoS) constraints in multiple-access networks. In the proposed game, each us...
Resource allocation for QoS provisioning in wireless ad hoc networks
Reflection wireless network transmission data rate the network resources
2015/8/11
For wireless ad hoc networks with multihop transmissions and Rayleigh fading, this paper maximizes the overall system throughput subject to QoS constraints on power, probability of outage, and data ra...
QoS and fairness constrained convex optimization of resource allocation for wireless cellular and ad hoc networks
Wireless cellular network distribution network resources optimization
2015/8/11
For wireless cellular and ad hoc networks with QoS constraints, we propose a suite of problem formulations that allocate network resources to optimize SIR, maximize throughput, and minimize delay. The...
Convex optimization of output link scheduling and active queue management in QoS constrained packet switches
Algorithm switches generalized geometric programming convex optimization
2015/8/11
We present two novel algorithms at the ingress and egress of packet switches with QoS provisioning and fairness constraints. We first provide a suite of generalized weighted fair queuing formulations ...
Resource Allocation for QoS Provisioning in Wireless Ad Hoc Networks
Resource Allocation QoS Provisioning Wireless Ad Hoc Networks
2015/7/10
For wireless ad hoc networks with multihop transmissions and Rayleigh fading, this paper maximizes the overall system throughput subject to QoS constraints on power, probability of outage, and data ra...
QoS and Fairness Constrained Convex Optimization of Resource Allocation for Wireless Cellular and Ad Hoc Networks
Ad hoc Networks Cellular Networks Convex Optimization QoS Constrained Resource Allocation Fairness
2015/7/10
For wireless cellular and ad hoc networks with QoS constraints, we propose a suite of problem formulations that allocate network resources to optimize SIR, maximize throughput, and minimize delay. The...
Convex Optimization of Output Link Scheduling and Active Queue Management in QoS Constrained Packet Switches
Convex Optimization Output Link Scheduling Active Queue Management QoS Constrained Packet Switches
2015/7/10
We present two novel algorithms at the ingress and egress of packet switches with QoS provisioning and fairness constraints. We first provide a suite of generalized weighted fair queuing formulations ...
Wireless Link Adaptation Policies:QoS for Deadline Constrained Traffic with Imperfect Channel Estimates
Wireless Link Adaptation Policies QoS Deadline Constrained Traffic Imperfect Channel Estimates
2015/7/8
We present an optimal power and rate control policy for delay constrained traffic in next generation TDMA wireless systems. Our solution minimizes average transmit power while satisfying a constraint ...
A RASTER-BASED MAP INFORMATION MEASUREMENT FOR QOS
Internet/Web GIS Information Measurement Mapping Visualization Services
2015/6/1
With the changing status of GIS from desktop to distributed environment, geographic information is more often required to transmit over networks. As geospatial data is in essence of huge volume and co...
面向全局约束的QoS分解与服务状态监控机制研究
QoS 全局约束 约束分配 松弛系数
2016/12/30
组合服务QoS需求的全局性和服务QoS状态监控的局部性之间的矛盾使得组合服务的可用性难以满足用户的需求.针对此问题,提出了组合服务的自适应框架,重点研究了全局QoS分配与服务的QoS状态监控机制;通过分析服务的QoS历史信息来预测服务的QoS阈值,从而为全局QoS分解提供启发信息.并引入松弛系数以降低服务自适应的开销.实验表明:通过QoS阈值预测和松弛系数的使用能够实现以较小的自适应开销适应环境变...
认知无线Mesh网络中满足QoS的高吞吐量安全路由协议
认知无线Mesh网络 安全路由 链路冲突 链路可用带宽 路径可靠度
2014/12/10
提出了一种综合考虑链路安全、链路冲突、链路可靠度与链路可用带宽的路由判据SIEB。SIEB包括链路安全和链路性能2个方面，在SIEB的链路安全权值计算中，为了抵御各种洞攻击，提出了基于两跳邻居反馈的链路信任值计算方法。在此基础上，提出了链路安全权值计算算法LSWC和链路性能权值计算算法LSPC，提出了分布式满足QoS约束的路由协议SIEBP，SIEBP的目标是：构造安全的路由路径，并且最大化网络吞...
基于双种群协同进化的QoS全局最优
Web服务选择 多目标离散粒子群算法 全局最优 服务质量
2013/11/19
针对服务质量（quality of service， QoS）全局最优Web服务选择问题，提出了一种双种群协同进化QoS全局最优Web服务选择算法。算法在多目标离散粒子群算法基础上设计一种双种群协同进化框架以同步进行非支配排序和精英粒子保留，并定义了一种新的离散粒子位置更新算子。同时为保证粒子的多样性和算法的全局收敛能力，算法采用基于距离的粒子多样性度量算子、基于适应值排序的粒子选择算法和基于轮盘...