{"505751":{"#nid":"505751","#data":{"type":"event","title":"Ph.D. Dissertation Defense - Chong Han","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle\u003C\/strong\u003E\u003Cem\u003E:\u0026nbsp; \u003C\/em\u003E\u003Cem\u003EPhysical Layer Solutions for Ultra-broadband Wireless Communications in the Terahertz Band\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Akyildiz , Advisor\u003C\/p\u003E\u003Cp\u003EDr. Geoffrey Li, ECE\u003C\/p\u003E\u003Cp\u003EDr. Mary Ann Weitnauer, ECE\u003C\/p\u003E\u003Cp\u003EDr. Ragupathy Sivakumar, ECE\u003C\/p\u003E\u003Cp\u003EDr. Josep Miquel Jornet, Univ of Buffalo\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EThe objective of the thesis is to establish the physical layer foundations of the ultra-broadband communication in the THz band. First, a unified multi-path propagation channel is modeled in the THz band, based on ray-tracing techniques. The wideband characteriza- tion are analyzed, which include the distance-varying spectral windows, the delay spread, the wideband capacity and the temporal broadening effects. Second, a multi-wideband waveform design for the THz band is proposed to improve the distance and support ultra- high-speed transmissions. Third, two algorithms for timing acquisition in the pulse-based wireless systems are developed, namely the low-sampling-rate (LSR) algorithm, and the maximum likelihood (ML)-based approach. Fourth, the distance-aware bandwidth resource allocation schemes for the single-user and multi-user THz band networks are developed. Fifth, a three-dimensional (3-D) end-to-end model is developed and characterized, which includes the responses of the graphene-based reflectarray antenna and the 3-D multi-path propagation.\u0026nbsp;\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"ECE PhD Dissertation Defense"}],"uid":"28475","created_gmt":"2016-02-24 13:26:56","changed_gmt":"2016-10-08 02:16:41","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2016-03-10T10:00:00-05:00","event_time_end":"2016-03-10T10:00:00-05:00","event_time_end_last":"2016-03-10T10:00:00-05:00","gmt_time_start":"2016-03-10 15:00:00","gmt_time_end":"2016-03-10 15:00:00","gmt_time_end_last":"2016-03-10 15:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"434381","name":"ECE Ph.D. Dissertation Defenses"}],"categories":[],"keywords":[{"id":"1808","name":"graduate students"},{"id":"100811","name":"Phd Defense"}],"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":""}}}