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Quantifying the achievable cellular traffic offloading gain with passpoint hotspots 量化可实现的蜂窝流量卸载增益与通点热点
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633672
Sahar Hoteit, Stefano Secci, G. Pujolle, S. Wiethölter, A. Wolisz, Cezary Ziemlicki, Z. Smoreda
{"title":"Quantifying the achievable cellular traffic offloading gain with passpoint hotspots","authors":"Sahar Hoteit, Stefano Secci, G. Pujolle, S. Wiethölter, A. Wolisz, Cezary Ziemlicki, Z. Smoreda","doi":"10.1145/2633661.2633672","DOIUrl":"https://doi.org/10.1145/2633661.2633672","url":null,"abstract":"Wi-Fi technology has always been an attractive solution for catering the increasing data demand in mobile networks because of the availability of Wi-Fi networks, the high bit rates they provide, and the lower cost of ownership. However, the legacy WiFi technology lacks of seamless interworking between Wi-Fi and mobile cellular networks on the one hand, and between Wi-Fi hotspots on the other hand. Nowadays, the recently released Wi-Fi Certified Passpoint Program provides the necessary control-plane for these operations. Service providers can henceforth look to such Wi-Fi systems as a viable way to seamlessly offload mobile traffic and deliver added-value services, so that subscribers no longer face the frustration and aggravation of connecting to Wi-Fi hotspots. However, the technology being rather recent, we are not aware of public studies at the state of the art documenting the achievable gain in real mobile networks. In this paper, we evaluate the capacity gain that one can get by offloading cellular data traffic over Wi-Fi Passpoint hotspots as a function of different hotspot placement schemes and of access point selection policies (two enabled by the Passpoint control-plane and one independent of it). We compare the policies using real mobile data from the Orange network in Paris. We show that offloading using Passpoint control-plane information can grant up to 15% gain with respect to Passpoint-agnostic ones based on signal quality information. As of placement strategy, installing Passpoint hotspots in the outer annulus of the macrocell coverage grants the maximum gains.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127899048","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: 7
A smart disaster management system for future cities 未来城市的智能灾害管理系统
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633670
Z. Alazawi, O. Alani, Mohmmad B. Abdljabar, Saleh M. Altowaijri, Rashid Mehmood
{"title":"A smart disaster management system for future cities","authors":"Z. Alazawi, O. Alani, Mohmmad B. Abdljabar, Saleh M. Altowaijri, Rashid Mehmood","doi":"10.1145/2633661.2633670","DOIUrl":"https://doi.org/10.1145/2633661.2633670","url":null,"abstract":"Smart cities have recently become the mainstream approaches for urbanisation. Environmental, social and economic sustainability, digital inclusion and high quality of life are considered important elements in smart cities design. Emergency response system and resilience are among the most crucial dimensions of smart and future cities design due to the increase in various disruptions caused by frequent manmade and natural disasters such as September 2001 and Philippines Typhoon Haiyan 2013. Disasters cause great economic and human losses each year throughout the world. Transportations and Telecommunications play a crucial role in disaster response and management. Our research is focused on developing emergency response systems for disasters of various scales with a focus on transportation systems. We have proposed and evaluated a disaster management system that uses Intelligent Transportation Systems including Vehicular Ad hoc Networks (VANETs), mobile and Cloud Computing technologies. In this paper, we report our recent work on two major evacuation strategies, Demand Strategies (DS) and Speed Strategies (SS), which provide better evacuation results in smart cities settings.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127000203","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: 92
User study on the feasibility of incentive systems for smartphone-based DTNs in smart cities 智能城市中基于智能手机的DTNs激励系统可行性的用户研究
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633662
S. Schildt, Tim Lüdtke, K. Reinprecht, L. Wolf
{"title":"User study on the feasibility of incentive systems for smartphone-based DTNs in smart cities","authors":"S. Schildt, Tim Lüdtke, K. Reinprecht, L. Wolf","doi":"10.1145/2633661.2633662","DOIUrl":"https://doi.org/10.1145/2633661.2633662","url":null,"abstract":"The idea that devices in a distributed system share their resources is quite old. Recent research areas which continue to rely on this idea are opportunistic networks and participatory sensing. Substantial theoretical work regarding the design of incentive systems intended to encourage and sustain participation in such applications is available: While most of the existing work deals with technical implementations and the question how to make these systems fair and secure, not much thought has been given to the question what an acceptable and economically feasible incentive could be. In this work we implemented an incentive system for a smartphone-based Delay Tolerant Network (DTN) and performed a 1 month study where users tested and evaluated the system. We analysed the users' motives and the sustainability and feasibility of the examined incentive system.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126912478","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
Intelligent street lighting clustering 智能路灯集群
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633668
R. Verhoeven, N. Jovanovic, J. Lukkien
{"title":"Intelligent street lighting clustering","authors":"R. Verhoeven, N. Jovanovic, J. Lukkien","doi":"10.1145/2633661.2633668","DOIUrl":"https://doi.org/10.1145/2633661.2633668","url":null,"abstract":"The advances in dynamic street lighting introduce new functionality for control and maintenance of the street lighting infrastructure. Vital elements in this infrastructure are the powerful controlling devices that control separate groups of light poles and collect information from the system. For an infrastructure based on wireless communication, this paper describes a fast heuristic algorithm for selecting the locations of these controllers and computing their light poles assignments. In addition, we present the analysis of the simulation results obtained by testing our algorithm for six street lighting networks with real geographic locations of their light poles.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128474332","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
VELOR: velocity-based routing protocol VELOR:基于速度的路由协议
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633666
Y. Shah, Wesley Chee-Wah Tan
{"title":"VELOR: velocity-based routing protocol","authors":"Y. Shah, Wesley Chee-Wah Tan","doi":"10.1145/2633661.2633666","DOIUrl":"https://doi.org/10.1145/2633661.2633666","url":null,"abstract":"This research focuses on developing a velocity-based routing (VELOR) protocol for city and urban vehicular ad hoc networks. VELOR is a two-level routing protocol. The first level finds the intersections to be traversed along the routing path based on the road topology and vehicular traffic on each road segment. Selective flooding method is developed to reduce congestion and signaling overhead. At the second level, forwarding optimization is carried out using the standby function for selecting next-hop node based on the identified parameters. These parameters are the farthest predicted neighbor and the transmission probability. Simulations performed using Simulation of Urban Mobility (SUMO), BonnMotion and NS-2 compare the AODV, OLSR, GPSR and GOSR routing protocols with VELOR. VELOR shows as much as 35% increase in average packet delivery ratio and as much as 50% decrease in the average end-to-end delay as compared to the other protocols in high density, urban networks. On comparing across various mobility scenarios, the packet delivery ratios for all the protocols drop significantly with the increase in mobility model complexity, except for VELOR which is stable throughout. Across all the mobility models, the delays increase for all other protocols with increasing node density. However, for VELOR, the delay decreases.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114692714","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
Social opportunistic sensing and social centric networking: enabling technology for smart cities 社会机会感测和以社会为中心的网络:智慧城市的使能技术
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633674
S. Sigg, Xiaoming Fu
{"title":"Social opportunistic sensing and social centric networking: enabling technology for smart cities","authors":"S. Sigg, Xiaoming Fu","doi":"10.1145/2633661.2633674","DOIUrl":"https://doi.org/10.1145/2633661.2633674","url":null,"abstract":"In recent years, with tremendous advances in areas like mobile devices, algorithms for distributed systems, communication technology or protocols, all basic technological pieces to realise a Smart City are at hand. Missing, however, is a mechanism that bridges these pieces to ease the creation of Smart Cities at a larger scale. In this visionary paper, we discuss challenges of Smart Cities and propose enabling technologies to bridge the above mentioned pieces for their actual realisation. In particular, we introduce the concepts of Social Opportunistic Sensing (SOS) and Social Centric Networking (SCN). While the former is an enabling technology to interconnect all parties in a Smart City, the latter has the potential to enhance offline social networks in Internet of Things (IoT) enhanced Smart Cities by connecting individuals based on their automatically updated profile via context-based routing.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114178693","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: 7
New services design for smart cities: a planning roadmap for user-driven innovation 智慧城市新服务设计:用户驱动创新的规划路线图
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633664
N. Komninos, P. Tsarchopoulos, C. Kakderi
{"title":"New services design for smart cities: a planning roadmap for user-driven innovation","authors":"N. Komninos, P. Tsarchopoulos, C. Kakderi","doi":"10.1145/2633661.2633664","DOIUrl":"https://doi.org/10.1145/2633661.2633664","url":null,"abstract":"As city authorities are becoming increasingly aware of the concepts 'intelligent city? and 'smart city' they undertake initiatives for designing new e-services that address challenges of development and sustainability more efficiently. However, the existing literature primarily focuses on application development, while the whole city planning process and involvement of citizens and end-users in the design and implementation of e-services for urban renewal is still a largely unknown field. After a literature review on smart city strategies and planning as well as a description of a pilot case for the creation of a smart city district, which was implemented in the framework of the PEOPLE project , the present paper concludes with a holistic approach for planning smart cities and designing e-services collaboratively in the form of a strategic planning roadmap.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132558936","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: 47
A cost-benefit analysis of data processing architectures for the smart grid 智能电网数据处理体系结构的成本效益分析
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633665
A.U.N. Srirangam Narashiman, Matteo Vasirani, R. V. Prasad, K. Aberer
{"title":"A cost-benefit analysis of data processing architectures for the smart grid","authors":"A.U.N. Srirangam Narashiman, Matteo Vasirani, R. V. Prasad, K. Aberer","doi":"10.1145/2633661.2633665","DOIUrl":"https://doi.org/10.1145/2633661.2633665","url":null,"abstract":"Information and communication technology (ICT) infrastructure plays an important role to realize the full potential of Smart Grid applications. Smart grids utilize ICT entities to enhance efficiency, reliability and sustainability of power generation and distribution network. Majority of the architectures proposed hitherto focus only on a specific architectural aspect, like communication, storage, processing requirement, etc. Recent studies have shown that lack of knowledge on which architecture best satisfies certain information management requirements has hindered large scale smart grid deployments. In this paper, we investigate the cost-benefit analysis of four data processing architectures for various applications in smart grid. We introduce several key cost indicators to analyze hierarchical data processing architectures for the smart grid. In our evaluation, we consider realistic deployments for both dense and sparse environments. Results reported here are significant for smart grid designers, who can use them to discern the architecture that best fits the system requirements.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124018456","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
Urban wireless community networks: challenges and solutions for smart city communications 城市无线社区网络:智慧城市通信的挑战与解决方案
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633669
R. Cigno, L. Maccari
{"title":"Urban wireless community networks: challenges and solutions for smart city communications","authors":"R. Cigno, L. Maccari","doi":"10.1145/2633661.2633669","DOIUrl":"https://doi.org/10.1145/2633661.2633669","url":null,"abstract":"Is a different (from the global Internet and Cellular Networks) model for urban communications and networking conceivable? Can Community Networks, now flourishing in many parts of Europe and the world, be the next 'big thing' in networking, for once considering the needs of people and urban evolution as a key element, and not as a side effect of technology or business? This paper discusses recent evolutions of Community Networks in Urban Areas, blending the technical analysis of their topology and evolution, together with grand challenges ahead and the need for a novel, trans-disciplinary science that can guide the design of the future communication space for smart cities and beyond.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128218569","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
Towards a vehicular cloud - using parked vehicles as a temporary network and storage infrastructure 迈向车辆云——使用停放的车辆作为临时网络和存储基础设施
WiMobCity '14 Pub Date : 2014-08-11 DOI: 10.1145/2633661.2633671
F. Dressler, P. Handle, C. Sommer
{"title":"Towards a vehicular cloud - using parked vehicles as a temporary network and storage infrastructure","authors":"F. Dressler, P. Handle, C. Sommer","doi":"10.1145/2633661.2633671","DOIUrl":"https://doi.org/10.1145/2633661.2633671","url":null,"abstract":"We investigate the potentials of a vehicular cloud based on parked vehicles as a spatio-temporal network and storage infrastructure. Vehicular networking solutions have been investigated for more than a decade but recent standardization efforts just enable a broad use of this technology to build large scale Intelligent Transportation Systems (ITS). One of the key questions is whether some pre-deployed infrastructure is needed to enable and to boost vehicular networks. We see many benefits in such infrastructure to store information and to provide connectivity among the vehicles. Yet, instead of using Roadside Units (RSUs), we envision to rely on parked vehicles to provide such vehicular cloud services. In this paper, we demonstrate the feasibility of this idea using the Virtual Cord Protocol (VCP) protocol to enable dynamic cloud services. Our simulation results indicate that this concept is sound and scales even with a highly dynamic number of parkers on the streets.","PeriodicalId":213937,"journal":{"name":"WiMobCity '14","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134052482","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: 60
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