2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies最新文献

Is Rural Botswana Stuck to the "Chalkboard Only" Era while Others Make Strides in Mobile Learning? 当其他国家在移动学习方面取得长足进步时，博茨瓦纳农村地区是否还停留在“只使用黑板”的时代?

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-10 DOI: 10.1109/NGMAST.2015.39

Lydia Maketo, C. Balakrishna

引用次数: 1

Sensing-Throughput Tradeoff for Cognitive Radio in TV White Spaces 电视空白区域认知无线电的感知-吞吐量权衡

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.21

Mir Lodro, S. Greedy, C. Smartt, David W. P. Thomas, A. Vukovic

引用次数: 4

Emergency Navigation in Confined Spaces Using Dynamic Grouping 基于动态分组的密闭空间应急导航

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.12

Huibo Bi, Olumide J. Akinwande, E. Gelenbe

引用次数: 7

Lessons from Addressing Challenges in an Agricultural Extension Scheme Using Mobile Apps 利用移动应用程序解决农业推广计划挑战的经验教训

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.69

N. Amanquah, M. Mzyece

引用次数: 1

Efficient Control Algorithm for a Smart Solar Street Light 智能太阳能路灯的高效控制算法

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.40

Abhilasha Jain, C. Nagarajan

{"title":"Efficient Control Algorithm for a Smart Solar Street Light","authors":"Abhilasha Jain, C. Nagarajan","doi":"10.1109/NGMAST.2015.40","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.40","url":null,"abstract":"This paper describes a model of a smart street light that can work autonomously, save energy and can be seamlessly integrated with the existing grid. The street light incorporates a Light Emitting Diode array and an ARM Cortex M0 based microcontroller, both of which are powered by a combination of a solar panel and battery pack. The microcontroller executes an astronomical time switch based estimation algorithm to determine the sunrise and sunset time daily. This is done using the Real Time Clock running on the controller along with the hard coded coordinates and time zone of any given location. Upon evaluation of the sun times, the controller can routinely regulate the lamp at sunrise and sunset. The algorithm operates with an accuracy of up to 10 seconds in its estimation of sun times. The controller also monitors the voltage from the battery at sunset and switches to mains to power up the LED array in case power is not enough. A coin cell is also connected to the controller to ensure RTC keeps on running in the scenario that battery is completely discharged and there is no power from the mains. The results conclude that the use of such a technology would provide high energy efficiency, increases the operating life and also proves to be cost effective as compared to prevalent lamp technologies. Analysis is performed using HOMER, a microgrid simulation software. The boundary conditions are set for Indian scenarios, however the result applies to many geographical locations.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117189943","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

Probabilistic Offload Scheme in Integrated Cellular WiFi Systems 集成蜂窝WiFi系统中的概率卸载方案

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.18

Insook Kim, Dongwoo Kim

引用次数: 2

Dynamic Location Information in Attribute-Based Encryption Schemes 基于属性的加密方案中的动态位置信息

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.63

Iwailo Denisow, Sebastian Zickau, Felix Beierle, Axel Küpper

引用次数: 13

A QoS-oriented Power and Resource Allocation Framework for Wireless Networks 面向qos的无线网络功率和资源分配框架

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.54

R. A. V. Ramírez, V. Ramos

{"title":"A QoS-oriented Power and Resource Allocation Framework for Wireless Networks","authors":"R. A. V. Ramírez, V. Ramos","doi":"10.1109/NGMAST.2015.54","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.54","url":null,"abstract":"In this paper, we propose a low-complexity quality of service (QoS)-oriented resource and power allocation framework. The aim of our scheme is to adjust the power expenditure of mobile stations (MSs) according to their QoS demands, which are imposed by the applications on the MS ranging from conversational and video-conference to telemetry and bulk data, for instance. Users are scheduled based on their QoS requirements and interference levels. Furthermore, we apply a power allocation method which is based on non-cooperative game theory, thus users are forced to transmit in a power regime allowing them to meet their specific QoS constraints. We develop a centralized signal-to-interference-plus-noise ratio (SINR) balancing scheme as well as a maximum power allocation mechanism to provide a performance bound. The results show that our framework allows the system to achieve important energy savings. Furthermore, it allows a higher percentage of users to meet their QoS requirements, when compared with a signal-to-interference-plus-noise ratio balancing scheme and a maximum transmission power method. Additionally, we show that our method only requires minimal channel knowledge to perform its optimization process.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116053556","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

Improving Data Extraction Efficiency of Cache Nodes in Cognitive Radio Networks Using Big Data Analysis 利用大数据分析提高认知无线网络缓存节点的数据提取效率

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.15

Ankur Omar

{"title":"Improving Data Extraction Efficiency of Cache Nodes in Cognitive Radio Networks Using Big Data Analysis","authors":"Ankur Omar","doi":"10.1109/NGMAST.2015.15","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.15","url":null,"abstract":"In cognitive radio networks, unlicensed users are allowed to use underutilized licensed spectrum until licensed users' transmission quality of service is not compromised. As soon as the conflict goes beyond a certain limit, SU must leave the spectrum and move to the other nearby free band. At the time of interruption, sensing the nearby free channels and switching to them will take some time, hence the ongoing data will be interrupted, which will delay the data transmission. To minimize this delay, creating cache of the SU signal at multiple nodes in a cluster has shown significant improvement in reducing the transmission delay if cache placement is done systematically. This systematic and accurate placement of cache is possible if the data accumulated is accessed and processed quickly. Taking into account the vastness of cluster networks, a huge amount of data will be required to be accessed and processed. Cognitive Radio networks are very complex structures when it comes to the information sharing amongst the secondary users and with the cluster head. Taking into account, whether unlicensed users share their information with other secondary users, and in case if they do, how much proportion of it they allow the fusion center to process, several big data scenarios exist. This paper discusses the possible information sharing scenarios in cognitive radio network systems and their possible Big Data Solutions.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131433840","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

Scaled Unscented Kalman Filter for RSSI-based Indoor Positioning and Tracking 基于rssi的室内定位与跟踪的缩放无气味卡尔曼滤波

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.20

L. Khalil, P. Jung

引用次数: 10