{"634667":{"#nid":"634667","#data":{"type":"event","title":"Ph.D. Proposal Oral Exam - Varun Reddy","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp; \u003C\/strong\u003E\u003Cem\u003EWireless Systems for Energy-Efficient and High-Rate Acquisition in Dense Seismic Survey Topologies\u003C\/em\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ECommittee:\u0026nbsp; \u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Stuber, Advisor\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Barry, Chair\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Blough\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract: \u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe objective of the proposed research is to design a wireless geophone network architecture that can acquire seismic data in a scalable, energy-efficient, and real-time manner. Unlike typical sensor networks, data generation rates at each of the geophones are relatively high (0.1-1 Mbps), implying an aggregate rate of several Gigabits per second at the sink node for a total of 10,000-30,000 geophones that are deployed across areas as large as 100 square kilometers. A hierarchical architecture is proposed, with the IEEE 802.11af standard being deployed at the bottommost layer of the architecture. By operating in sub-GHz television white spaces, data rates of up to 70 Mbps over distances of up to 1 km can be realized. Additional channel access schemes, based on smart polling and time division multiple access techniques, are designed to deliver contention-free access and improved power saving at the geophones. A self-organizing network based on the IEEE 802.11ad standard is also an alternative choice for deployment at this layer. At the upper layers of the architecture, a mesh network based on IEEE 802.11ad and free space optical communication, can be employed to sustain real-time acquisition at Gigabit rates. Effective power conservation can be enforced at this stage by formulating an optimization framework that yields optimal aggregation lengths and sleep durations for frame aggregation-based operation. Overall, the task of securing real-time seismic acquisition at the sink node can be performed in an energy-efficient and standards-compliant manner, with the use of a minimal number of gateway devices.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Wireless Systems for Energy-Efficient and High-Rate Acquisition in Dense Seismic Survey Topologies"}],"uid":"28475","created_gmt":"2020-04-22 21:58:30","changed_gmt":"2020-04-22 21:58:30","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2020-05-04T15:00:00-04:00","event_time_end":"2020-05-04T17:00:00-04:00","event_time_end_last":"2020-05-04T17:00:00-04:00","gmt_time_start":"2020-05-04 19:00:00","gmt_time_end":"2020-05-04 21:00:00","gmt_time_end_last":"2020-05-04 21:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"434371","name":"ECE Ph.D. Proposal Oral Exams"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}