2018 IEEE 7th International Conference on Cloud Networking (CloudNet)最新文献_第2页

An Efficient Scheme for BBU-RRH Association in C-RAN Architecture for Joint Power Saving and Re-Association Optimization C-RAN架构中一种高效的BBU-RRH关联方案，用于联合节能和重关联优化

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549295

Karen Boulos, K. Khawam, M. Helou, M. Ibrahim, H. Sawaya, Steven Martin

{"title":"An Efficient Scheme for BBU-RRH Association in C-RAN Architecture for Joint Power Saving and Re-Association Optimization","authors":"Karen Boulos, K. Khawam, M. Helou, M. Ibrahim, H. Sawaya, Steven Martin","doi":"10.1109/CloudNet.2018.8549295","DOIUrl":"https://doi.org/10.1109/CloudNet.2018.8549295","url":null,"abstract":"A key drive towards 5G networks is the Cloud Radio Access Networks architecture (C-RAN). It consists in decoupling two main elements composing the base station: The Base Band Unit (BBU) and the Remote Radio Head (RRH), allowing for centralized processing of BBUs and efficient resource management. The BBU-RRH associations are optimized in this context, where many RRHs are associated to a single BBU when network load conditions are low. Many studies address the BBU-RRH association problem, also known as RRH clustering, for enhancing the energy efficiency. However, rare contributions seek to optimize the BBU-RRH re-association due to the dynamicity of network load conditions. In fact, frequent re-associations between BBUs and RRHs cause a serious degradation in the Quality of Service (QoS) since connected User Equipments (UEs) experience costly handovers (HOs) to different BBUs. This paper tackles such problem by proposing a hybrid algorithm that is divided into two stages: The first is based on a potential game among RRHs to associate to active BBUs, while the second is a centralized scheme, where a central controller decides of the activation/deactivation of BBUs. We compare the results to a previous centralized proposition and to a classical formulation of BBU-RRH association problem as a bin packing optimization. The results show a good tradeoff between power saving and HO rate reduction. In addition, our proposition outperforms the performances of the bin packing problem.","PeriodicalId":436842,"journal":{"name":"2018 IEEE 7th International Conference on Cloud Networking (CloudNet)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128680752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Minimizing Overheads of Checkpoints in Distributed Stream Processing Systems 最小化分布式流处理系统中检查点的开销

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549548

Syed Muhammad Abrar Akber, Hanhua Chen, Yonghui Wang, Hai Jin

{"title":"Minimizing Overheads of Checkpoints in Distributed Stream Processing Systems","authors":"Syed Muhammad Abrar Akber, Hanhua Chen, Yonghui Wang, Hai Jin","doi":"10.1109/CloudNet.2018.8549548","DOIUrl":"https://doi.org/10.1109/CloudNet.2018.8549548","url":null,"abstract":"Failure occurrence in large-scale systems is inevitable, which makes the resilience a key challenge for modern systems. Checkpoints with rollback recovery is a well-known approach to provide fault tolerance in distributed systems. The checkpoint based fault tolerance approach periodically persists the application state to reliable storage, which serves as a recovery point in case of failure. These periodic checkpoints are not inline with the failure rate of the systems as many studies conclude that failure occurrence is not periodic. The optimal size of checkpoint interval is a crucial decision, which directly determines the checkpoint overheads. To minimize the checkpoint overheads, we propose to reduce the number of checkpoints during the application execution. We suggest reducing the number of checkpoints by successively increasing the checkpoint intervals. We consider the failure probability of the underlying infrastructure and iteratively increase the checkpoint intervals. The proposed checkpoint approach tailors the checkpoint initializing based on the failure probability. If failure probability is low, it increases the checkpoint interval, and eventually reduces the total number of checkpoints triggered during application timespan. Reducing the total number of checkpoints during application execution results in decreasing the checkpoint overheads. The experiment results show that the proposed checkpoint policy considerably reduces the checkpoint overheads as compared to periodic checkpoints.","PeriodicalId":436842,"journal":{"name":"2018 IEEE 7th International Conference on Cloud Networking (CloudNet)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132201363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Demystifying Myths of MEC: Rethinking and Exploring Benefits of Multi-Access/Mobile Edge Computing 揭开MEC的神秘面纱:重新思考和探索多接入/移动边缘计算的好处

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549539

Takamitsu Iwai, A. Nakao

{"title":"Demystifying Myths of MEC: Rethinking and Exploring Benefits of Multi-Access/Mobile Edge Computing","authors":"Takamitsu Iwai, A. Nakao","doi":"10.1109/CloudNet.2018.8549539","DOIUrl":"https://doi.org/10.1109/CloudNet.2018.8549539","url":null,"abstract":"The benefits of Mobile/Multi-access Edge Computing (MEC) are often discussed for reducing the latency and offloading intense computation for data processing of emerging applications on the user equipment (UE), such as Aug-mented/Virtual Reality (AR/VR), connected car, content delivery, etc., onto edge cloud. On the other hand, the performance of UE is rapidly improving with abundant resources for enabling local data processing. In this paper, we rethink the benefits of MEC by first arguing these benefits are myths, that is, the advancement of UE may defeat the often-assumed benefits of MEC, i.e., offloading computation and reducing latency, and then demystify the myths by carefully summarizing the latency and computational requirements of the existing applications possibly benefiting from MEC by surveying several tens of publications while examining the recent UEs performance improvement. We also attempt to undercover new benefits of MEC. In the light of these observations, we conclude that MEC is not necessarily just required for low-latency and computationally intensive applications, but also brings benefits from the four additional perspectives: (1) Data Scalability, (2) Application Scalability, (3) Intent-driven Networking, (4) Partial offloading of the network functions.","PeriodicalId":436842,"journal":{"name":"2018 IEEE 7th International Conference on Cloud Networking (CloudNet)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114189675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Mobility Support for Vehicular Cloud Radio-Access-Networks with Edge Computing 基于边缘计算的车载云无线接入网络的移动性支持

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549365

Yonggang Kim, Namwon An, Jaehyoung Park, Hyuk Lim

引用次数: 12

Link Capacity Provisioning and Server Location Decision in Server Migration Service 服务器迁移服务中的链路容量分配与服务器位置决策

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549545

Y. Fukushima, T. Yokohira, T. Murase

{"title":"Link Capacity Provisioning and Server Location Decision in Server Migration Service","authors":"Y. Fukushima, T. Yokohira, T. Murase","doi":"10.1109/CloudNet.2018.8549545","DOIUrl":"https://doi.org/10.1109/CloudNet.2018.8549545","url":null,"abstract":"Server migration service (SMS) has been proposed as a new class of service to augment the existing IaaS (Infras-tructure as a Service) cloud service. SMS allows servers (server-side processes of a network application) to dynamically and automatically migrate close to their clients (client-side processes of the network application) in order to reduce the penalty that the SMS provider pays to is SMS subscribers when failing to provide them with the guaranteed level of QoS. In this paper, we tackle a link capacity provisioning and server location decision problem where we consider the sum of link capacity provisioning cost and the penalty as the total expenditure of SMS business, and aim at minimizing the total expenditure. In the problem, we determine how much capacity to add to links, and when and to which location to migrate servers. We formulate the problem as an integer programming model, solve the model, and obtain the optimal link capacities, server locations at each time, and the global optimum value of the total expenditure of SMS business. Numerical examples show that the proposed method decreases the total expenditure of SMS business by up to 49% compared to a conventional method that determines the server locations while fixing the link capacities.","PeriodicalId":436842,"journal":{"name":"2018 IEEE 7th International Conference on Cloud Networking (CloudNet)","volume":"359 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123001177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Scalable Declarative IT System Update Automation by A* Search with Critical-Element Heuristics 基于关键元素启发式的A*搜索的可扩展声明式IT系统更新自动化

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549556

Takuya Kuwahara, T. Kuroda, Manabu Nakanoya, Yutaka Yakuwa, H. Shimonishi

引用次数: 2

Resolving Controller Load Imbalanced State in Multiple Controllers Based Software-Defined Network 基于软件定义网络的多控制器负载不均衡解决方法

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549538

Takuna Kaiwa, N. Kitsuwan

{"title":"Resolving Controller Load Imbalanced State in Multiple Controllers Based Software-Defined Network","authors":"Takuna Kaiwa, N. Kitsuwan","doi":"10.1109/CloudNet.2018.8549538","DOIUrl":"https://doi.org/10.1109/CloudNet.2018.8549538","url":null,"abstract":"This paper proposes a switch migration scheme to balance the load of all controllers in multiple controllers based software-defined network. Several works define the number of requested packets as a controller load. The controller needs to hold the current processing until receiving a response message from the switch before processing a new request. For this reason, the number of requested packets incorporates with the path cost is defined as a controller load. In a multiple controllers approach, a load imbalanced state is recognized if a load of one controller is biased against a load of the other controllers. In the imbalanced state, connections of some switches that belong to a controller with high load are disconnected, and the switches are reconnected to the other controllers with the lower load. This process is called a migration process. The probability of migration and the efficiency of migration are used as a decision to find a switch to be migrated and the other controller to be reconnected. The load imbalanced state is resolved but the aggregate load of all controllers may be increased. In the proposed scheme, the aggregate load of all controllers after the migration is used as an indicator to select the migrated switch and a new controller. A pair of migrated switch and controller with the minimum aggregate load is selected so that the aggregate load is reduced compared to the conventional scheme. Computer simulation result shows that the proposed scheme reduces the aggregate load, compared to the traditional scheme.","PeriodicalId":436842,"journal":{"name":"2018 IEEE 7th International Conference on Cloud Networking (CloudNet)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129697257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

VNF Placement with Optimization Problem Based on Data Throughput for Service Chaining 基于业务链数据吞吐量的VNF布局优化问题

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549543

Daisuke Amaya, Y. Sumi, Shunsuke Homma, Toru Okugawa, T. Tachibana

引用次数: 7

Migration for VNF Instances Forming Service Chain 形成服务链的VNF实例迁移

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549194

Koji Sugisono, Aki Fukuoka, Hirofumi Yamazaki

引用次数: 5

RESTful Hardware Microservices Using Reconfigurable Networked Accelerators in Cloud and Edge Datacenters 在云和边缘数据中心中使用可重构网络加速器的RESTful硬件微服务

2018 IEEE 7th International Conference on Cloud Networking (CloudNet) Pub Date : 2018-10-01 DOI: 10.1109/CloudNet.2018.8549544

Mazen Ezzeddine, Raghid Morcel, H. Artail, M. Saghir, Haitham Akkary, Hazem M. Hajj

引用次数: 4