{"349011":{"#nid":"349011","#data":{"type":"event","title":"Telecommunications Seminar","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ESpeaker:\u003C\/strong\u003E Yonathan Murin, Ben-Gurion University\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETitle:\u003C\/strong\u003E \u003Cem\u003EJoint Source-Channel Coding in Multiuser Networks\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003Cbr \/\u003EThe simplest approach to the transmission of a source signal over a noisy channel is to first encode (compress) the source via source codes and obtain a bit sequence for each source, and then, encode these bits via a channel code by adding redundancy. This technique, commonly known as separate source-channel coding, is prevalent in modern communication systems. However; it is well known that in many scenarios source-channel separation is sub- optimal and higher source-channel rates can be achieved by designing the channel and the source code jointly, known as joint source-channel coding (JSCC). In this talk we discuss JSCC for two multi-user scenarios.\u003C\/p\u003E\u003Cp\u003EThe first scenario involves cooperative transmission of two correlated sources over a multiple-access relay channel, which represents cooperative uplink communication in wireless networks. We shall present novel cooperative joint-source channel coding schemes using combinations of Slepian-Wolf coding and the correlation preserving mapping technique, and derive new necessary conditions.\u003C\/p\u003E\u003Cp\u003EThe second scenario is the transmission of correlated Gaussian sources over a Gaussian broadcast channel with noiseless feedback. This scenario is motivated by practical network control problems with strict delay constraints, e.g., a sensor node communicating the state of a complex system to various control units. Differently from the existing literature, we focus on the finite horizon regime. We present three new joint source-channel transmission schemes and characterize their performances. The first scheme is based on communication theoretic arguments, the second one builds upon liner quadratic Gaussian control theory, and the third applies a dynamic programming approach.\u003C\/p\u003E\u003Cp\u003EThis is a joint work with Ron Dabora (BGU), Deniz Gunduz (ICL), and Yonatan Kaspi (UCSD).\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ESpeaker Bio:\u003C\/strong\u003E\u003Cbr \/\u003EYonathan Murin received his B.Sc. degree in Electrical Engineering and Computer Science from Tel-Aviv University, Israel, in 2004, and his M.Sc. (magna cum laude) degree in Electrical Engineering from Ben-Gurion University, Israel, in 2011. He is currently pursuing a Ph.D. degree in Electrical Engineering at Ben-Gurion University. From 2004 to 2010 he worked as a DSP and algorithms engineer and as a team leader at Comsys Communication and Signal Processing. His research interests include network information theory, wireless communications and digital signal processing. Yonathan is a recipient of the Zin and Pratt fellowships for outstanding Ph.D. students.\u003C\/p\u003E\u003Cp\u003E\u003Cbr \/\u003E\u003Cbr \/\u003E\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Joint Source-Channel Coding in Multiuser Networks"}],"uid":"27842","created_gmt":"2014-11-25 12:58:16","changed_gmt":"2017-04-13 21:21:01","author":"Ashlee Gardner","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2014-12-03T10:00:00-05:00","event_time_end":"2014-12-03T11:00:00-05:00","event_time_end_last":"2014-12-03T11:00:00-05:00","gmt_time_start":"2014-12-03 15:00:00","gmt_time_end":"2014-12-03 16:00:00","gmt_time_end_last":"2014-12-03 16:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"1255","name":"School of Electrical and Computer Engineering"}],"categories":[],"keywords":[],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78751","name":"Undergraduate students"},{"id":"78761","name":"Faculty\/Staff"},{"id":"174045","name":"Graduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003ECordai Farrar \u003Cbr \/\u003E\u003Ca href=\u0022mailto:cordai.farrar@ece.gatech.edu\u0022\u003Ecordai.farrar@ece.gatech.edu\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}