2018 IEEE Colombian Conference on Communications and Computing (COLCOM)最新文献

Optimal Placement of Data Aggregation Points for Smart Metering using Wireless Heterogeneous Networks 基于无线异构网络的智能计量数据聚合点的优化配置

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-16 DOI: 10.1109/COLCOMCON.2018.8466731

E. Inga, M. Campaña, R. Hincapié, S. Céspedes

{"title":"Optimal Placement of Data Aggregation Points for Smart Metering using Wireless Heterogeneous Networks","authors":"E. Inga, M. Campaña, R. Hincapié, S. Céspedes","doi":"10.1109/COLCOMCON.2018.8466731","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466731","url":null,"abstract":"This paper presents a heuristic model that optimally deploys the resources used to obtain a metropolitan and neighborhood area network with connectivity between the central office of an electricity company and the integrated meters in the homes of the clients-consumers. The presented model is not limited to relax a problem NP-Complete through grouping techniques or search by iterative processes which is the minimum or maximum distance that allows to obtain a feasible mesh that guarantees the connection of the smart meters in a real scenario; on the contrary, the work presents an option that allows reducing investment costs and achieving a heterogeneous wireless network that articulates several options in contrast to the cellular technology that would increase the investment considerably in the advanced measurement infrastructure; additionally, it includes the ability of wireless technology to achieve a long-term deployment that is scalable for the inclusion of new smart meters, but with the lowest cost considering to the minimum number of concentrators or data aggregation points of the initial feasible set determined by the corners where there are public lighting poles. The model achieves routing between smart meters, data aggregation points and cellular base stations that finally connect with the central office.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124558308","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

Monitoring and irrigation of an urban garden using IoT 利用物联网监测和灌溉城市花园

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-16 DOI: 10.1109/COLCOMCON.2018.8466722

Gabriela Carrion, M. Huerta, B. Barzallo

{"title":"Monitoring and irrigation of an urban garden using IoT","authors":"Gabriela Carrion, M. Huerta, B. Barzallo","doi":"10.1109/COLCOMCON.2018.8466722","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466722","url":null,"abstract":"The traditional methods used in agriculture often have disadvantages related to consumption, management and conservation of water for irrigation. The emergence of new technologies such as Internet of Things and information management has accelerated the develop of “modern agricuture” by mitigating or at best eliminating the problems mentioned above. In this paper is presented the design and implementation of an embedded system that uses Internet of Things and a set of sensors and actuators to allow the monitoring of climatic variables and irrigation of an urban garden located in the parking facilities of the Universidad Politécnica Salesiana. Sensors measure parameters such as environmental humidity and temperature, soil moisture and temperature, CO2 levels, luminosity and crop presence; processed within an ATMEL microcontroller,which takes decisions for irrigation based on crop requirements. This information is received by the remote server through the WiFi protocol, which stores it in the cloud within a database and sends it to the client computer or mobile device, who will be able to access this data in real time from any location where it has access to the Internet.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131018236","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

Dynamic Gallager-Humblet-Spira Algorithm for Wireless Sensor Networks 无线传感器网络的动态gallager - humlet - spira算法

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-16 DOI: 10.1109/COLCOMCON.2018.8466704

Sergio Diaz, Diego Mendez, Mario Scholzel

引用次数: 1

Towards a Real-Time Air Pollution Monitoring Systems Implemented using Wireless Sensor Networks: Preliminary Results 迈向使用无线传感器网络实现的实时空气污染监测系统:初步结果

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-16 DOI: 10.1109/COLCOMCON.2018.8466721

Byron Guanochanga, Rolando Cachipuendo, Walter Fuertes, D. Benítez, T. Toulkeridis, Jenny G. Torres, César Villacís, Freddy Tapia, Fausto Meneses

引用次数: 9

Seamless Handoff Management in IEEE 802.11 Networks Using SDN 基于SDN的IEEE 802.11网络无缝切换管理

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-16 DOI: 10.1109/COLCOMCON.2018.8466702

Steven Martinez, N. Cardona, J. F. Botero

{"title":"Seamless Handoff Management in IEEE 802.11 Networks Using SDN","authors":"Steven Martinez, N. Cardona, J. F. Botero","doi":"10.1109/COLCOMCON.2018.8466702","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466702","url":null,"abstract":"The implementation of IEEE 802.11 wireless networks has grown notably in recent years. Handoff management in wireless networks, i.e., transferring an active data session from one cell defined by an access point to another, is a critical function. In IEEE 802.11 networks, this function interrupts mobile users’ connection to the network, ultimately resulting in service disruption. Currently, the Software Defined Networking (SDN) paradigm presents innovations and abstractions in the network architecture that can improve network management in wireless networks. SDN, through Light Virtual Access Point abstraction, enables the network to take control of the handoff process in IEEE 802.11 without network disconnection (seamless handoff) which is not possible in IEEE 802.11 traditional networks. In this paper, we show through experimentation over real network devices that SDN enables to perform the seamless handoff process in IEEE 802.11 without modification to the end user’ s mobile station and completely controlled by the network. We show that it is possible to reduce the handoff delay from one second or more in traditional networks to milliseconds in SDN networks by means of the LVAP abstraction.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117145816","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

An Energy Consumption Model for MultiModal Wireless Sensor Networks based on Wake-up Radio Receivers 基于唤醒无线电接收机的多模态无线传感器网络能量消耗模型

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-16 DOI: 10.1109/COLCOMCON.2018.8466728

Juan Aranda, Mario Schölzel, Diego Mendez, Henry Carrillo

引用次数: 7

Impact of Metadata Server on a Large Scale File System 元数据服务器对大型文件系统的影响

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-16 DOI: 10.1109/COLCOMCON.2018.8466729

Ripon Patgiri, Sabuzima Nayak, S. Borgohain

引用次数: 1

Performance Evaluation of Spatial Modulation Techniques in Correlated MIMO V2V Channels 相关MIMO V2V信道空间调制技术性能评价

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466338

J. Cortez, C. Gutiérrez, F. Castillo-Soria, J. M. Luna-Rivera, F. M. Maciel-Barboza, Erica Ruiz

引用次数: 6

QoS Evaluation of the Future High-Efficiency IEEE 802.11ax WLAN Standard 未来高效IEEE 802.11ax无线局域网标准的QoS评价

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466723

Jeisson S. Sánchez-Mahecha, S. Céspedes, Javier Bustos-Jiménez

{"title":"QoS Evaluation of the Future High-Efficiency IEEE 802.11ax WLAN Standard","authors":"Jeisson S. Sánchez-Mahecha, S. Céspedes, Javier Bustos-Jiménez","doi":"10.1109/COLCOMCON.2018.8466723","DOIUrl":"https://doi.org/10.1109/COLCOMCON.2018.8466723","url":null,"abstract":"Nowadays, the development of new wireless protocols and standards are an engineering challenge due to the increased demand of Internet services via wireless access networks. Incoming standards, such as the IEEE 802.11ax, aim to improve the availability and performance of the wireless local area networks (WLAN). Recent works related to the development of the IEEE 802.11ax standard are focused on the description and initial performance evaluations of the expected technical improvements; however, there is no evaluation available regarding the QoS improvements that can be achieved with the new features included in the standard. In this work, we present a qualitative evaluation, as well as a set of laboratory and emulation tests aiming to compare current WLAN networks (IEEE 802.11g/n/ac) with the future IEEE 802.11ax networks. Datasets from real wireless scenarios are collected to evaluate QoS metrics in current IEEE 802.11g networks, and the IEEE 802.11ax standard is evaluated via emulation in NS3 with the injection of the same datasets, considering there are no deployments available with the new standard to date. Results show a significant improvement in terms of effective transfer rate (throughput) and round-trip-time (RTT) for the future WLAN networks, which is in line with the huge potential expected with the introduction of the upcoming high efficiency IEEE 802.11ax standard.","PeriodicalId":151973,"journal":{"name":"2018 IEEE Colombian Conference on Communications and Computing (COLCOM)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133143476","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

Study of Somewhat Homomorphic Encryption Scheme for Image Erosion and Dilation 图像侵蚀与膨胀的半同态加密方案研究

2018 IEEE Colombian Conference on Communications and Computing (COLCOM) Pub Date : 2018-05-01 DOI: 10.1109/COLCOMCON.2018.8466717

Óscar Hurtado-Guarnizo, M. Duarte-González

引用次数: 0