Tong Zhu, Zhichao Cao, Wei Gong, Yuan He, Yunhao Liu
Wireless sensor networks (WSNs) are developed in an accelerated pace during the past years. Motivated by the need of closely monitoring the forest and urban environments and accurately measuring carbon sequestration and emission, we launched two long-term large-scale WSNs: "GreenOrbs" in 2009 and "CitySee" in 2011, respectively. This paper presents our recent advances and experience on how to implement the two WSNs with stable and high performance. Some research directions are also discussed based on our observations and measurements.
{"title":"Illuminations and the revelations: lessons learned from GreenOrbs project development","authors":"Tong Zhu, Zhichao Cao, Wei Gong, Yuan He, Yunhao Liu","doi":"10.1145/2557968.2557974","DOIUrl":"https://doi.org/10.1145/2557968.2557974","url":null,"abstract":"Wireless sensor networks (WSNs) are developed in an accelerated pace during the past years. Motivated by the need of closely monitoring the forest and urban environments and accurately measuring carbon sequestration and emission, we launched two long-term large-scale WSNs: \"GreenOrbs\" in 2009 and \"CitySee\" in 2011, respectively. This paper presents our recent advances and experience on how to implement the two WSNs with stable and high performance. Some research directions are also discussed based on our observations and measurements.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81171377","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}
Hagen Höpfner, G. Morgenthal, Maximilian Schirmer, Marcel Naujoks, Christoph Halang
Modern smartphones provide various sensors for measuring physical phenomena in their surroundings. Due to the increased CPU performance and storage space, smartphones become able to process measured data in a more and more complex way. However, different limitations do exist that hamper the usage of smartphones as wirelessly communicating sensor platforms. The research presented in this paper is motivated by a real world application: the measurement of oscillations in the context of building monitoring. We discuss approaches for measuring oscillations using smartphones and analyse their limitations.
{"title":"On measuring mechanical oscillations using smartphone sensors: possibilities and limitation","authors":"Hagen Höpfner, G. Morgenthal, Maximilian Schirmer, Marcel Naujoks, Christoph Halang","doi":"10.1145/2557968.2557972","DOIUrl":"https://doi.org/10.1145/2557968.2557972","url":null,"abstract":"Modern smartphones provide various sensors for measuring physical phenomena in their surroundings. Due to the increased CPU performance and storage space, smartphones become able to process measured data in a more and more complex way. However, different limitations do exist that hamper the usage of smartphones as wirelessly communicating sensor platforms. The research presented in this paper is motivated by a real world application: the measurement of oscillations in the context of building monitoring. We discuss approaches for measuring oscillations using smartphones and analyse their limitations.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74248167","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}
In this paper, we propose a hierarchical market structure and contracting mechanisms that could be used by wireless/mobile service providers to trade spectrum and spectrum-derived services with each other. This market advances beyond the current contracting mechanisms between service providers that, due to availability of only long-term contract choices, do not lead to efficient utilization of spectrum resources and service innovation for the customers. We describe the spectrum market structure in terms of the role of the providers and the different spectrum contract types that could be traded in the marketplace. Finally, the role and function of present day mobile virtual networks operators (MVNO) and the mobile network operators (MNO) are discussed from the context of the proposed market structure.
{"title":"Hierarchical spectrum market and the design of contracts for mobile providers","authors":"P. Carvalho, Aparna Gupta, K. Kar","doi":"10.1145/2557968.2557976","DOIUrl":"https://doi.org/10.1145/2557968.2557976","url":null,"abstract":"In this paper, we propose a hierarchical market structure and contracting mechanisms that could be used by wireless/mobile service providers to trade spectrum and spectrum-derived services with each other. This market advances beyond the current contracting mechanisms between service providers that, due to availability of only long-term contract choices, do not lead to efficient utilization of spectrum resources and service innovation for the customers. We describe the spectrum market structure in terms of the role of the providers and the different spectrum contract types that could be traded in the marketplace. Finally, the role and function of present day mobile virtual networks operators (MVNO) and the mobile network operators (MNO) are discussed from the context of the proposed market structure.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80135506","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}
N. Vallina-Rodriguez, J. Crowcroft, A. Finamore, Y. Grunenberger, K. Papagiannaki
Location based services are a vital component of the mobile ecosystem. Among all the location technologies used behind the scenes, A-GPS (Assisted-GPS) is considered to be the most accurate. Unlike standalone GPS systems, A-GPS uses network support to speed nup position fix. However, it can be a dangerous strategy due to varying cell conditions which may impair performance, sometimes potentially neglecting the expected benefits of the original design. We present the characterization of the accuracy, location acquisition speed, energy cost, and network dependency of the state of the art A-GPS receivers shipped in popular mobile devices. Our analysis is based on active measurements, an exhaustive on-device analysis, and cellular traffic traces processing. The results reveals a number of inefficiencies as a result of the strong dependence on the cellular network to obtain assisting data, implementation, and integration problems.
{"title":"When assistance becomes dependence: characterizing the costs and inefficiencies of A-GPS","authors":"N. Vallina-Rodriguez, J. Crowcroft, A. Finamore, Y. Grunenberger, K. Papagiannaki","doi":"10.1145/2557968.2557970","DOIUrl":"https://doi.org/10.1145/2557968.2557970","url":null,"abstract":"Location based services are a vital component of the mobile ecosystem. Among all the location technologies used behind the scenes, A-GPS (Assisted-GPS) is considered to be the most accurate. Unlike standalone GPS systems, A-GPS uses network support to speed nup position fix. However, it can be a dangerous strategy due to varying cell conditions which may impair performance, sometimes potentially neglecting the expected benefits of the original design. We present the characterization of the accuracy, location acquisition speed, energy cost, and network dependency of the state of the art A-GPS receivers shipped in popular mobile devices. Our analysis is based on active measurements, an exhaustive on-device analysis, and cellular traffic traces processing. The results reveals a number of inefficiencies as a result of the strong dependence on the cellular network to obtain assisting data, implementation, and integration problems.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86168344","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}
A. A. Sani, Zhiyong Tan, P. Washington, Mira Chen, S. Agarwal, Lin Zhong, Ming Zhang
Cellular data consumption is an important issue for users and network operators. However, little is understood about data consumption differences between similar apps, smartphone platforms, and different classes of users. We examine data consumption behavior in the lab, comparing different apps of the same category, comparing the same top apps across different platforms, and comparing network APIs that apps use across different platforms. We also collect data from 387 Android users in India, where users pay for cellular data consumed, with little prevalence of unlimited data plans. Our findings can inform users on how their choice of platform and apps has a drastic impact on their data bill. Our findings can also inform operators on how to use incentives to induce desired data consumption.
{"title":"The wireless data drain of users, apps, & platforms","authors":"A. A. Sani, Zhiyong Tan, P. Washington, Mira Chen, S. Agarwal, Lin Zhong, Ming Zhang","doi":"10.1145/2557968.2557971","DOIUrl":"https://doi.org/10.1145/2557968.2557971","url":null,"abstract":"Cellular data consumption is an important issue for users and network operators. However, little is understood about data consumption differences between similar apps, smartphone platforms, and different classes of users. We examine data consumption behavior in the lab, comparing different apps of the same category, comparing the same top apps across different platforms, and comparing network APIs that apps use across different platforms. We also collect data from 387 Android users in India, where users pay for cellular data consumed, with little prevalence of unlimited data plans. Our findings can inform users on how their choice of platform and apps has a drastic impact on their data bill. Our findings can also inform operators on how to use incentives to induce desired data consumption.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81916502","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}
Design verification takes 80 % of times in the flow design of hardware/software applications. To reduce this duration, subsequent transformations are performed across different levels of abstraction until the final implementation. We propose a rapid prototyping camera system based on FPGAs, which allows designs to be explored and evaluated in realistic environments. Our focus is on the design of a generic embedded hardware/software architecture with a symbolic representation of the input application to allow a programmability at a very high abstraction level. The hardware/software partitioning is facilitated through the integration of OpenCV and SystemC in the same environment for rapid simulation and OpenCV and Linux in the run-time environment.
{"title":"ACM HotMobile 2013 poster: RazorCam: a prototyping environment for video communication","authors":"Michael Mefenza, Franck Yonga, C. Bobda","doi":"10.1145/2542095.2542103","DOIUrl":"https://doi.org/10.1145/2542095.2542103","url":null,"abstract":"Design verification takes 80 % of times in the flow design of hardware/software applications. To reduce this duration, subsequent transformations are performed across different levels of abstraction until the final implementation. We propose a rapid prototyping camera system based on FPGAs, which allows designs to be explored and evaluated in realistic environments. Our focus is on the design of a generic embedded hardware/software architecture with a symbolic representation of the input application to allow a programmability at a very high abstraction level. The hardware/software partitioning is facilitated through the integration of OpenCV and SystemC in the same environment for rapid simulation and OpenCV and Linux in the run-time environment.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76195122","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}
In this demo, we present Focus , a system for effectively and efficiently reducing the power consumption of OLED displays. The key idea of Focus is that we can save display power by dimming the portions of the applications and games that are less important to the user using the notion of saliency. We explain the design considerations driving Focus followed by a description of the implementation and demo of Focus to support both Android applications and games. Focus can save, on average, between 23 and 35% of the OLED display power when applications are used.
{"title":"ACM HotMobile 2013 demo: Focus: a demo on usable & effective approach to OLED display power management","authors":"Tan Kiat Wee, T. Okoshi, Archan Misra, R. Balan","doi":"10.1145/2542095.2542099","DOIUrl":"https://doi.org/10.1145/2542095.2542099","url":null,"abstract":"In this demo, we present Focus , a system for effectively and efficiently reducing the power consumption of OLED displays. The key idea of Focus is that we can save display power by dimming the portions of the applications and games that are less important to the user using the notion of saliency. We explain the design considerations driving Focus followed by a description of the implementation and demo of Focus to support both Android applications and games. Focus can save, on average, between 23 and 35% of the OLED display power when applications are used.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75989757","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}
Stavros Asimakopoulos, F. Spillers, George Boretos, Zhengjie Liu
As mobile-based applications and services are expanding, the need to take a human-centred approach in their design and adoption becomes ever more important. This study aims to provide an understanding of users from different countries and principles that support better design of user experience (UX) in the context of mobile advertising.
{"title":"Designing mobile advertising: user experience factors for enhancing user adoption","authors":"Stavros Asimakopoulos, F. Spillers, George Boretos, Zhengjie Liu","doi":"10.1145/2542095.2542098","DOIUrl":"https://doi.org/10.1145/2542095.2542098","url":null,"abstract":"As mobile-based applications and services are expanding, the need to take a human-centred approach in their design and adoption becomes ever more important. This study aims to provide an understanding of users from different countries and principles that support better design of user experience (UX) in the context of mobile advertising.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90197719","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}
Connor Bain, S. Dey, Srihari Nelakuditi, Romit Roy Choudhury
A smartphone is well positioned to understand its user’s behavior, learn the current context, and make suitable recommendations. In addition, because of cloud storage, smartphones now have access to the same user data that a desktop computer would. We propose to use this knowledge about the user to help him/her stay connected and focused. Software like MacFreedom in the desktop realm and Unplug & Reconnect in the mobile realm claim to help you stay focused, but simply disable connectivity [4, 5]. By disabling your network connectivity for a period of time, they eliminate distractions but also eliminate the func-
{"title":"ACM HotMobile 2013 poster: mitigating distractions from smartphones","authors":"Connor Bain, S. Dey, Srihari Nelakuditi, Romit Roy Choudhury","doi":"10.1145/2542095.2542106","DOIUrl":"https://doi.org/10.1145/2542095.2542106","url":null,"abstract":"A smartphone is well positioned to understand its user’s behavior, learn the current context, and make suitable recommendations. In addition, because of cloud storage, smartphones now have access to the same user data that a desktop computer would. We propose to use this knowledge about the user to help him/her stay connected and focused. Software like MacFreedom in the desktop realm and Unplug & Reconnect in the mobile realm claim to help you stay focused, but simply disable connectivity [4, 5]. By disabling your network connectivity for a period of time, they eliminate distractions but also eliminate the func-","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90380283","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}
Giulio Grassi, Davide Pesavento, Lucas Wang, G. Pau, Rama Vuyyuru, R. Wakikawa, Lixia Zhang
In this paper we apply the Named Data Networking, a newly proposed Internet architecture, to networking vehicles on the run. Our design, V-NDN , illustrates NDN's promising potential to providing a unifying architecture that enables networking among all computing devices independent from whether they are connected through wired infrastructure, ad hoc, or intermittent DTN.
本文将命名数据网络(Named Data Networking)——一种新提出的互联网架构——应用于运行中的车辆网络。我们的设计，V-NDN，说明了NDN提供一个统一架构的潜力，使所有计算设备之间的网络独立，无论它们是通过有线基础设施，特设，或间歇性DTN连接。
{"title":"ACM HotMobile 2013 poster: vehicular inter-networking via named data","authors":"Giulio Grassi, Davide Pesavento, Lucas Wang, G. Pau, Rama Vuyyuru, R. Wakikawa, Lixia Zhang","doi":"10.1145/2542095.2542108","DOIUrl":"https://doi.org/10.1145/2542095.2542108","url":null,"abstract":"In this paper we apply the Named Data Networking, a newly proposed Internet architecture, to networking vehicles on the run. Our design, V-NDN , illustrates NDN's promising potential to providing a unifying architecture that enables networking among all computing devices independent from whether they are connected through wired infrastructure, ad hoc, or intermittent DTN.","PeriodicalId":43578,"journal":{"name":"Mobile Computing and Communications Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76767709","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：