2015 IEEE Globecom Workshops (GC Wkshps)最新文献_第2页

A Multi-Stage Packet-Switch Based on NoC Fabrics for Data Center Networks 基于NoC结构的数据中心网络多级分组交换

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7414039

Fadoua Hassen, L. Mhamdi

{"title":"A Multi-Stage Packet-Switch Based on NoC Fabrics for Data Center Networks","authors":"Fadoua Hassen, L. Mhamdi","doi":"10.1109/GLOCOMW.2015.7414039","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2015.7414039","url":null,"abstract":"Bandwidth-hungry applications such as Cloud computing, video sharing and social networking drive the creation of more powerful Data Centers (DCs) to manage the large amount of packetized traffic. Data center network (DCN) topologies rely on thousands of servers that exchange data via the switching backbone. Cluster switches and routers are employed to provide interconnectivity between elements of the same DC and inter DCs and must be able to handle the continuously variable loads. Hence, robust and scalable switching modules are needed. Conventional DCNs adopt multistage switches that are crossbar or/and memory based. However, current multistage packet switch architectures, with their space-memory variants, are either too complex to implement, have poor performance, or not cost effective. In this paper, we propose a novel and highly scalable multistage packet- switch design based on Network-on-Chip (NoC) fabrics for DCNs. In particular, we describe a novel three-stage packet-switch fabric with a Round-Robin packets dispatching scheme where each central stage module is based on a multihop Unidirectional NoC (UDN), instead of a classic singlehop crossbar fabric. The proposed design, referred to as Clos-UDN, overcomes all the shortcomings of conventional multistage architectures. In particular, as we shall demonstrate, the proposed Clos-UDN architecture: (i) Obviates the need for a complex and costly input modules, by means of few, yet simple, input FIFO queues. (ii) Avoids the need for a complex and synchronized scheduling process over a high number of input- output modules and/or port pairs. (iii) Provides speedup, load balancing and path- diversity thanks to a dynamic dispatching scheme as well as the NoC based fabric nature. Extensive simulation studies are conducted to compare the proposed Clos-UDN switch to traditional multistage switches. Simulation results show that the Clos-UDN outperforms previous designs under a wide range of input traffic scenarios, making it highly appealing for ultra-high capacity DC networks.","PeriodicalId":315934,"journal":{"name":"2015 IEEE Globecom Workshops (GC Wkshps)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129435329","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: 8

Outage Performance of Hybrid FSO/RF System with Low-Complexity Power Adaptation 低复杂度功率自适应FSO/RF混合系统的中断性能

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7414199

Tamer Rakia, Hong-Chuan Yang, F. Gebali, Mohamed-Slim Alouini

引用次数: 3

An Ultra-Low-Latency Geo-Routing Scheme for Team-Based Unmanned Vehicular Applications 基于团队的无人驾驶车辆应用的超低延迟地理路由方案

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7414087

Ahmed Bader, Mohamed-Slim Alouini

引用次数: 3

Elevation Plane Spatial Multicell Interference Mitigation with No CSI Sharing 无CSI共享的高程平面空间多细胞干扰抑制

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7413973

N. Seifi, M. Coldrey, T. Svensson

引用次数: 0

Prolonging Wireless Sensor Network Lifetime by Optimal Utilization of Compressive Sensing 优化利用压缩感知延长无线传感器网络寿命

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7414049

Huseyin Ugur Yildiz, B. Tavlı

{"title":"Prolonging Wireless Sensor Network Lifetime by Optimal Utilization of Compressive Sensing","authors":"Huseyin Ugur Yildiz, B. Tavlı","doi":"10.1109/GLOCOMW.2015.7414049","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2015.7414049","url":null,"abstract":"In a typical Wireless Sensor Network (WSN) application, sensor nodes gather data from the environment and convey the collected data towards the base station. It is possible to perform certain signal processing operations on raw data on each sensor node before transmission so that the amount of transmitted data bits is reduced. The amount of transmitted data usually depends on how much processing is performed on each node. Less processing results in more data to be transmitted and vice versa. However, more complex computation operations dissipate more energy. Hence, utilization of signal processing operations should be evaluated carefully by considering both their computation costs and the amount of data reduction they achieve. It is also possible to employ different signal processing techniques at different nodes, hence, optimal assignment of signal processing algorithms can be assessed at the network-level (i.e., all nodes adopts a single signal processing technique during the entire lifetime) or at the node-level (i.e., allowing different nodes to implement different solutions during lifetime). In this study, we develop a novel Mixed Integer Programming (MIP) framework to quantitatively investigate the effects of utilizing traditional transform coding (TC) based and compressive sensing (CS) based signal processing techniques (network-level and node- level) on WSN lifetime. We explore the parameter space consisting of network size, node density, and signal sparsity level through the numerical evaluations of the proposed novel MIP model.","PeriodicalId":315934,"journal":{"name":"2015 IEEE Globecom Workshops (GC Wkshps)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126294646","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: 3

A Microeconomic Approach to Data Trading in User Provided Networks 用户提供网络中数据交易的微观经济学方法

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7413997

B. Lorenzo, Felipe Gómez-Cuba, Juan García-Rois, F. González-Castaño, J. C. Burguillo

引用次数: 6

Performance Analysis of Cluster Content Caching in Cloud-Radio Access Networks 云-无线接入网络中集群内容缓存的性能分析

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7414084

Zhongyuan Zhao, Shiwei Jia, Yong Li, M. Peng, Chonggang Wang

引用次数: 7

Novel Demodulation Scheme Based on Blurred Images for Image-Sensor-Based Visible Light Communication 基于图像传感器的可见光通信模糊图像解调新方案

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7414144

Yukimasa Ohira, Shintaro Arai, T. Yendo, T. Yamazato, Hiraku Okada, T. Fujii, K. Kamakura

引用次数: 8

wFlatnet: Introducing Wireless in Flatnet Data Center Network wFlatnet:在Flatnet数据中心网络中引入无线

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7414102

Emna Baccour, S. Foufou, R. Hamila, M. Hamdi

引用次数: 8

OMAC: An Opportunistic Medium Access Control Protocol for IEEE 802.11 Wireless Networks OMAC: IEEE 802.11无线网络的机会介质访问控制协议

2015 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2015-12-01 DOI: 10.1109/GLOCOMW.2015.7413986

Antonio Franco, S. Bastani, Emma Fitzgerald, B. Landfeldt

{"title":"OMAC: An Opportunistic Medium Access Control Protocol for IEEE 802.11 Wireless Networks","authors":"Antonio Franco, S. Bastani, Emma Fitzgerald, B. Landfeldt","doi":"10.1109/GLOCOMW.2015.7413986","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2015.7413986","url":null,"abstract":"The ambitious goal of the upcoming IEEE 802.11ax (HEW) standard for wireless LANs (WLANs) to enhance throughput by four times (and beyond), compared with IEEE 802.11ac, demands a radical improvement of present medium access control (MAC) functionality. To this end, a promising paradigm would be a graceful migration towards new MAC protocols which incorporate higher certainty in their decisions. However, this requires adequate information to be available to the devices, which in turn incurs excessive costs due to information exchange between devices. Also, scalability becomes an issue for emerging dense networks. In this paper, we take a step forward by proposing an opportunistic MAC (OMAC), which restrains these costs, while increasing throughput of the new generation HEW. OMAC eliminates overhead costs by solely relying on the local capability of devices in measuring signal activities in the channel. A particular OMAC node continually collects and records the received signal strengths (RSS) overheard from the channel, and regards each individual RSS level as being transmitted by a unique node without the need to know the actual identity of the node. The OMAC node uses this knowledge to select a recorded RSS as its reference, and triggers a desired transmission policy whenever a transmission with an RSS sufficiently close to this reference RSS is detected. Our results, obtained using simulations, indicate that OMAC improves the throughput performance significantly, and that the performance gain increases with an increase in network density.","PeriodicalId":315934,"journal":{"name":"2015 IEEE Globecom Workshops (GC Wkshps)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132285029","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: 2