@conference {237,
	title = {Socio-technical aspects of video phones},
	booktitle = {2010 Second International Conference on COMmunication Systems and NETworks (COMSNETS 2010)},
	year = {2010},
	month = {Jan},
	abstract = {<p>The widespread use of voice over Internet protocol has paved the way for video over Internet protocol. In the past, certain technical shortcomings have prevented the popularity of videophones in the market. With present-day technology, videophones have just about everything required for day-to-day functions. Under such circumstances, certain socio-technical aspects require attention so that videophones can become as widespread and as technically streamlined as a plain old telephone system (POTS) with its additional benefits. A frequently brushed-upon topic is optimum features in the video phone for day-to-day social interactions. We carried out several experiments on different kinds of codecs and video formats to address two issues: i) the size of a video screen and ii) perception of motion and distance. From the measurements, we observed that a small frame rate with low bandwidth is adequate and can result in satisfactory video quality. We also observed that H263 performs well for all the day-to-day social networking activities. Standing 4 feet from the camera can still give reasonably good video quality in the currently available codecs. We believe that socio-technical issues will emerge more clearly over the next several years and they are germane to deployment of PC-based soft phones as well as hard phones.</p>
},
	keywords = {Bandwidth, Cameras, Codecs, Computer science, Internet telephony, plain old telephone system, Protocols, social aspects of automation, Social factors, social interactions, social issues, Social network services, social networking activities, sociotechnical aspects, Streaming media, technical issues, video codecs, video coding, video phones, video quality, Videoconference, videophone quality, videophones, videotelephony, voice over Internet protocol},
	doi = {10.1109/COMSNETS.2010.5431971},
	author = {Chandrasekaran, Vikram and Dantu, Siva and Kadiyala, Priyanka and Ram Dantu and Phithakkitnukoon, Santi}
}
@conference {48,
	title = {Data centric modeling of environmental sensor networks},
	booktitle = {Global Telecommunications Conference Workshops, 2004. GlobeCom Workshops 2004. IEEE},
	year = {2004},
	month = {Nov},
	abstract = {<p>Meteorological and hydrological sensors deployed over several hundred kilometers of geographical area comprise an environmental sensor network. Large amounts of data need to be processed in minimal time and transmitted over the available low speed and low bandwidth links. This paper describes algorithms for optimal data collection and data fusion. An inductive model using exponential back-off policy is used to collect optimal amount of data. The data measurements for temperature, pH and specific conductance collected for a year from the sensors deployed at Lake Lewisville are used to test the inductive model. Energy savings of 90\% are achieved even with 1\% of degree of tolerance. The problem of data fusion is addressed by the introduction of a novel concept of a super-sensor, based on self-organization and collaboration among sensors. A histogram application is described that uses recursive doubling for global collaboration between sensors. The performance of the networked super-sensor in comparison to a centralized polling approach is analyzed for optimality on two different geographical areas.</p>
},
	keywords = {Bandwidth, biosensors, data centric modeling, data fusion, environmental sensor network, exponential back-off policy, Histograms, hydrological sensor, International collaboration, Lakes, meteorological, Meteorology, networked super-sensor, optimal data collection, sensor fusion, Sensor phenomena and characterization, Temperature measurement, temperature sensors, Testing},
	doi = {10.1109/GLOCOMW.2004.1417621},
	author = {Ram Dantu and Abbas, Kaja and O{\textquoteright}Neill, Marty and Mikler, Armin}
}
