2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)最新文献_第4页

A computationally efficient node-selection scheme for cooperative beamforming in Cognitive Radio enabled 5G systems 基于认知无线电的5G系统协同波束形成的高效节点选择方案

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562235

Sudeep Bhattarai, Gaurang Naik, Liang Hong

{"title":"A computationally efficient node-selection scheme for cooperative beamforming in Cognitive Radio enabled 5G systems","authors":"Sudeep Bhattarai, Gaurang Naik, Liang Hong","doi":"10.1109/INFCOMW.2016.7562235","DOIUrl":"https://doi.org/10.1109/INFCOMW.2016.7562235","url":null,"abstract":"Cooperative transmit beamforming (CTB) is a practical approach for addressing the challenging problem of spectrum scarcity in broadband 5G wireless communication systems. It is a technique that allows a group of secondary users (SUs), each equipped with a single omni-directional antenna, to collaborate and steer the signal towards the intended receiver. CTB allows SUs to co-exist with primary users in the same spectrum, which helps to significantly improve the efficiency of spectrum utilization. One of the key factors that affect the performance of CTB is the selection of participatory nodes. In this paper, we first formulate the CTB as an optimization problem, and then investigate the impact of different node-selection schemes on the performance of CTB. Our findings illustrate that exhaustive search based optimal node-selection scheme is computationally infeasible for real-time systems, while simple random-selection and highest-channel-state based selection often result in poor performance. Motivated by these findings, we propose a computationally efficient node-selection scheme for CTB that achieves a near-optimal performance. The proposed scheme is based on iterative node-replacement and is computationally scalable to large system size. Results from extensive simulations show that the proposed scheme asymptotically approaches the exhaustive search based optimal system performance. In our example, the performance of the proposed scheme is approximately 98.5% of the optimal system performance while limiting the required computations to only 1.67%.","PeriodicalId":348177,"journal":{"name":"2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"345 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131267015","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: 5

Experiments with UWB aircraft sensor networks 超宽带飞机传感器网络实验

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562216

Daniel Neuhold, J. F. Schmidt, C. Bettstetter, J. Klaue, D. Schupke

引用次数: 8

An SC-FDMA inter-cell interference suppression method based on a time-varying filter 基于时变滤波器的SC-FDMA小区间干扰抑制方法

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562208

Yue Li, X. Sha, Liang Ye

引用次数: 3

Interconnecting smart cities by vehicles: How feasible is it? 汽车互联智慧城市:可行性如何?

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562184

Florian Hagenauer, C. Sommer, R. Onishi, Matthias Wilhelm, F. Dressler, O. Altintas

{"title":"Interconnecting smart cities by vehicles: How feasible is it?","authors":"Florian Hagenauer, C. Sommer, R. Onishi, Matthias Wilhelm, F. Dressler, O. Altintas","doi":"10.1109/INFCOMW.2016.7562184","DOIUrl":"https://doi.org/10.1109/INFCOMW.2016.7562184","url":null,"abstract":"In future smart cities cars will play an important role not only by transporting people and goods, but also as information hubs. Cars will be equipped with various communication technologies and will be able to offer their own resources like data storage, processing power, and sensor data (e.g., camera pictures or temperature). In Car4ICT, cars in smart cities connect service producers and consumers by offering service discovery for them and transferring the data in-between. But, the proposed architecture cannot be used as-is for interconnecting smart cities or transferring data from and to rural areas. This is due to mobility patterns outside of cities being different and requiring specialized algorithms. Therefore, in this paper we extend Car4ICT to interconnect smart cities and rural areas. The extension still relies on IVC as cellular coverage in rural areas is often sparse. By covering additional areas, the number of available services increases and a redundant communication link between smart cities is added. To support long-distance communication, we changed core parts of the architecture and evaluated the changes with extensive simulations. For this, we used a segment from the freeway between Tokyo and Osaka in Japan and evaluated the transmission delay for various distances. The foundation for these simulations was real world traffic data provided by Japanese authorities. Based on these simulations we can show for which distance Car4ICT in a freeway scenario is still feasible.","PeriodicalId":348177,"journal":{"name":"2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128953114","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: 14

Galvanic coupling Intra-Body Communication link for real-time channel assessment 用于实时信道评估的电耦合体内通信链路

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562220

W. Tomlinson, K. Chowdhury, Christopher C. Yu

{"title":"Galvanic coupling Intra-Body Communication link for real-time channel assessment","authors":"W. Tomlinson, K. Chowdhury, Christopher C. Yu","doi":"10.1109/INFCOMW.2016.7562220","DOIUrl":"https://doi.org/10.1109/INFCOMW.2016.7562220","url":null,"abstract":"The emerging field of Intra-Body Communication (IBC) will result in the innovation of many health care applications by allowing in-situ monitoring and mobility for the human subjects. We use a technique called Galvanic Coupling (GC) that uses weak electrical currents for the intra-body links, instead of RF, as this is two orders of magnitude superior when comparing energy efficiency. In this work, we demonstrate an experimental setup that can be used to implement and validate physical layer communication schemes and link layer protocols using off-the-shelf hardware and commercially procured synthetic human tissue. Our setup uses Universal Software Radio Peripherals (USRPs) as the transmitter and receiver nodes, with additional interfacing electronics, to allow flexible transmission of signals in the 100 kHz - 1 MHz frequency range. Furthermore, we provide a visual GUI-based configuration as well as demonstration of link quality based results. The complete hardware and software design, as well as an instructional video, are made available license-free for public consumption to stimulate further research in this field.","PeriodicalId":348177,"journal":{"name":"2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132374170","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: 10

Priority control based on website categories in edge computing 边缘计算中基于网站分类的优先级控制

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562182

N. Kamiyama, Yuusuke Nakano, K. Shiomoto, G. Hasegawa, M. Murata, H. Miyahara

{"title":"Priority control based on website categories in edge computing","authors":"N. Kamiyama, Yuusuke Nakano, K. Shiomoto, G. Hasegawa, M. Murata, H. Miyahara","doi":"10.1109/INFCOMW.2016.7562182","DOIUrl":"https://doi.org/10.1109/INFCOMW.2016.7562182","url":null,"abstract":"Modern websites consist of many rich objects dynamically produced by servers and client terminals at diverse locations. To deliver dynamic objects efficiently, edge computing in which objects are dynamically generated and delivered to client terminals on edge servers located at edge nodes will be effective. It is anticipated that the effectiveness of edge computing depends on the geographical pattern of object deployment, and the tendency of geographical distribution of objects is different among website categories, e.g., Sports and News, so it seems effective to prioritize website categories for edge computing. In this paper, we first propose a platform for measuring the geographical tendency of object deployment in each website category. We then propose to differentiate the caching priority in edge computing among website categories based on the measured deployment pattern of objects. Through the experience of accessing about 1,000 of the most popular websites from 12 locations worldwide using PlanetLab, we clarify that we can improve the reduction ratio of web response time by about 20% by carefully differentiating caching priority among website categories.","PeriodicalId":348177,"journal":{"name":"2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123373374","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: 6

Graph abstraction based Virtual Network management framework for SDN 基于图抽象的SDN虚拟网络管理框架

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562203

Yoonseon Han, J. Hyun, J. W. Hong

引用次数: 4

An efficient technique for protecting location privacy of cooperative spectrum sensing users 一种有效的协同频谱感知用户位置隐私保护技术

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562209

Mohamed Grissa, A. Yavuz, B. Hamdaoui

引用次数: 19

gTBS: A green Task-Based Sensing for energy efficient Wireless Sensor Networks gTBS:一种基于绿色任务的高能效无线传感器网络传感技术

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562060

Abdullah Alhalafi, Lokman Sboui, R. Naous, B. Shihada

{"title":"gTBS: A green Task-Based Sensing for energy efficient Wireless Sensor Networks","authors":"Abdullah Alhalafi, Lokman Sboui, R. Naous, B. Shihada","doi":"10.1109/INFCOMW.2016.7562060","DOIUrl":"https://doi.org/10.1109/INFCOMW.2016.7562060","url":null,"abstract":"Wireless sensor networks (WSN) are widely used to sense and measure physical conditions for different purposes and within different regions. However due to the limited lifetime of the sensor's energy source, many efforts are made to design energy efficient WSN. As a result, many techniques were presented in the literature such as power adaptation, sleep and wake-up, and scheduling in order to enhance WSN lifetime. These techniques where presented separately and shown to achieve some gain in terms of energy efficiency. In this paper, we present an energy efficient cross layer design for WSN that we named “green Task-Based Sensing” (gTBS) scheme. The gTBS design is a task based sensing scheme that not only prevents wasting power in unnecessary signaling, but also utilizes several techniques for achieving reliable and energy efficient WSN. The proposed gTBS combines the power adaptation with a sleep and wake-up technique that allows inactive nodes to sleep. Also, it adopts a gradient-oriented unicast approach to overcome the synchronization problem, minimize network traffic hurdles, and significantly reduce the overall power consumption of the network. We implement the gTBS on a testbed and we show that it reduces the power consumption by a factor of 20%-55% compared to traditional TBS. It also reduces the delay by 54%-145% and improves the delivery ratio by 24%-73%.","PeriodicalId":348177,"journal":{"name":"2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121365919","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: 22

Coordinated initial access in millimetre wave standalone networks 毫米波独立网络中的协调初始接入

2016 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS) Pub Date : 2016-04-10 DOI: 10.1109/INFCOMW.2016.7562046

Y. Qi, M. Nekovee

引用次数: 11