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Simplifying fault diagnosis in locally managed rural WiFi networks 简化本地管理农村WiFi网络的故障诊断
USENIX/ACM Workshop on Networked Systems for Developing Regions Pub Date : 2007-08-27 DOI: 10.1145/1326571.1326573
S. Surana, Rabin K. Patra, E. Brewer
{"title":"Simplifying fault diagnosis in locally managed rural WiFi networks","authors":"S. Surana, Rabin K. Patra, E. Brewer","doi":"10.1145/1326571.1326573","DOIUrl":"https://doi.org/10.1145/1326571.1326573","url":null,"abstract":"The last three years have seen a lot of work in making WiFi-enabled Long Distance (WiLD) networking a reality in rural areas. Generally these networks are managed by non-local users who cannot guarantee long term support beyond a pilot. For long term operational sustainability, it is essential that maintenance duties be transferred to local administrators. In this paper, we argue that the research agenda should expand into areas of simplified diagnosis solutions as an en-abler for locally managed WiLD networks. Motivated by real faults we have seen in our own deployment at the Aravind Eye Hospital, we propose a framework to simplify diagnosis and show some initial results towards this direction.","PeriodicalId":189697,"journal":{"name":"USENIX/ACM Workshop on Networked Systems for Developing Regions","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124276703","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: 30
A public transport system based sensor network for road surface condition monitoring 基于传感器网络的路面状况监测公共交通系统
USENIX/ACM Workshop on Networked Systems for Developing Regions Pub Date : 2007-08-27 DOI: 10.1145/1326571.1326585
K. Zoysa, C. Keppitiyagama, Gihan P. Seneviratne, W. Shihan
{"title":"A public transport system based sensor network for road surface condition monitoring","authors":"K. Zoysa, C. Keppitiyagama, Gihan P. Seneviratne, W. Shihan","doi":"10.1145/1326571.1326585","DOIUrl":"https://doi.org/10.1145/1326571.1326585","url":null,"abstract":"A well maintained road network is a must for the economic development and the well being of people in any country. Unfortunately, most developing countries do not poses such road networks. While the lack of funds is mainly to blame for not building new road networks and maintaining the existing ones the lack of proper monitoring and reporting system is a major contributory factor for the dilapidated condition of road networks in third world countries. A case in point is the road network in Sri Lanka; Sri Lanka has an extensive road network that spans the country and new roads are being built every day, yet even the roads in the capital city are not maintained properly. The lack of a monitoring and reporting mechanism is apparent in this case.\u0000 We propose a public transport system based sensor network to monitor road surface condition. We are currently building such a network called BusNet to monitor environmental pollution and that system can be extended for road surface condition monitoring by adding acceleration sensor boards to the system.","PeriodicalId":189697,"journal":{"name":"USENIX/ACM Workshop on Networked Systems for Developing Regions","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133352986","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: 174
WWTW: the world wide telecom web WWTW:全球电信网络
USENIX/ACM Workshop on Networked Systems for Developing Regions Pub Date : 2007-08-27 DOI: 10.1145/1326571.1326582
Arun Kumar, Nitendra Rajput, D. Chakraborty, Sheetal K. Agarwal, A. A. Nanavati
{"title":"WWTW: the world wide telecom web","authors":"Arun Kumar, Nitendra Rajput, D. Chakraborty, Sheetal K. Agarwal, A. A. Nanavati","doi":"10.1145/1326571.1326582","DOIUrl":"https://doi.org/10.1145/1326571.1326582","url":null,"abstract":"The World Wide Web (WWW) enabled quick and easy information dissemination and brought about fundamental changes to various aspects of our lives. However, a very large number of people, mostly in developing regions, are still untouched by this revolution. Compared to PCs, the primary access mechanism to WWW, mobile phones have made a phenomenal penetration into this population segment. Low cost of ownership, the simple user interface consisting of a small keyboard, limited menu and voice-based access contribute to the success of mobile phones with the less literate. However, apart from basic voice communication, these people are not being able to exploit the benefits of information and services available to WWW users. In this paper, we present the World Wide Telecom Web (WWTW) --- our vision of a voice-driven ecosystem parallel to that of the WWW. WWTW is a network of interconnected voice sites that are voice driven applications created by users and hosted in the network. It has the potential to enable the underprivileged population to become a part of the next generation converged networked world. We present a whole gamut of existing technology enablers for our vision as well as present research directions and open challenges that need to be solved to not only realize a WWTW but also to enable the two Webs to cross leverage each other.","PeriodicalId":189697,"journal":{"name":"USENIX/ACM Workshop on Networked Systems for Developing Regions","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122093178","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: 106
Overview of AI3 network: design and applications of satellite network AI3网络概述:卫星网络的设计与应用
USENIX/ACM Workshop on Networked Systems for Developing Regions Pub Date : 2007-08-27 DOI: 10.1145/1326571.1326586
Teruaki Yokoyama, Shoko Mikawa, J. Takei, Kenjiro Cho, S. Yamaguchi, J. Murai
{"title":"Overview of AI3 network: design and applications of satellite network","authors":"Teruaki Yokoyama, Shoko Mikawa, J. Takei, Kenjiro Cho, S. Yamaguchi, J. Murai","doi":"10.1145/1326571.1326586","DOIUrl":"https://doi.org/10.1145/1326571.1326586","url":null,"abstract":"Many developing countries are not gaining benefits from the Internet as the network infrastructure has not yet been built due to the economic or administrative restrictions of these regions. Asian Internet Interconnection Initiatives (AI3) has been developing a research consortium of 29 partner institutions in 13 countries utilizing an Internet infrastructure over a satellite links. The project aims to develop partnerships and human networks to foster researchers within the regions to carry out research on the satellite Internet and to develop their regions. We have successfully conducted productive research and also developed a distance-learning environment as a result of more than a decade of experiments. This paper aims to share the operational know-how and results of research from AI3's activities to construct a network and applications that would support developing regions.","PeriodicalId":189697,"journal":{"name":"USENIX/ACM Workshop on Networked Systems for Developing Regions","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128103329","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
FRACTEL: a fresh perspective on (rural) mesh networks FRACTEL:农村网状网络的新视角
USENIX/ACM Workshop on Networked Systems for Developing Regions Pub Date : 2007-08-27 DOI: 10.1145/1326571.1326583
Kameswari Chebrolu, B. Raman
{"title":"FRACTEL: a fresh perspective on (rural) mesh networks","authors":"Kameswari Chebrolu, B. Raman","doi":"10.1145/1326571.1326583","DOIUrl":"https://doi.org/10.1145/1326571.1326583","url":null,"abstract":"The use of commodity 802.11 hardware to provide network connectivity to rural regions is an appealing proposition. In this paper, we consider such networks, with a combination of long-distance and short-distance links. In such a setting, we offer a fresh perspective on a variety of technical issues in multi-hop mesh networks. To support QoS for voice, video-based real-time applications, the use of a TDMA-based MAC is appropriate. In this context, we argue that existing approaches to TDMA scheduling and channel allocation are either inapplicable, or are too general and hence complicated. We apply extensive domain knowledge in designing a solution applicable in our context. We also suggest appropriate implementation strategies for the TDMA MAC, capable of scaling to large networks. In all of the above topics, we articulate open technical issues wherever applicable.","PeriodicalId":189697,"journal":{"name":"USENIX/ACM Workshop on Networked Systems for Developing Regions","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127729334","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: 80
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