{"title":"Finding minimax codes for discrete and continuous classes of sources","authors":"L. Wolfe","doi":"10.1109/SARNOF.2007.4567390","DOIUrl":"https://doi.org/10.1109/SARNOF.2007.4567390","url":null,"abstract":"This paper suggests a signal processing method for finding the minimax codes which minimize the maximum redundancies over a class of sources with either a discrete or a continuous alphabet, and where relative entropy (cross entropy; discrimination information) is a criterion to measure the redundancy. A complexity analysis and numerical studies demonstrate the efficiency of the method.","PeriodicalId":293243,"journal":{"name":"2007 IEEE Sarnoff Symposium","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132218478","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}
Yue-Kai Huang, I. Glesk, R. Shankar, P. Prucnal, Lei Xu, Ting Wang
{"title":"Timing jitter analysis of a multi-wavelength all-optical regenerator","authors":"Yue-Kai Huang, I. Glesk, R. Shankar, P. Prucnal, Lei Xu, Ting Wang","doi":"10.1109/SARNOF.2007.4567380","DOIUrl":"https://doi.org/10.1109/SARNOF.2007.4567380","url":null,"abstract":"We designed and built a novel all-optical re-timing, re-amplifying, and re-shaping (3R) regeneration system based on terahertz optical asymmetric demultiplexers (TOADs) developed in our laboratory. The system is capable of parallel processing multiple wavelengths, a feature which will significantly improve the scalability of current wavelength division multiplexing (WDM) networks. Performance against timing jitter of the regenerator is analyzed by VPI TransmissionMakertrade simulation platform and supported with experimental results at 10 Gb/s bit rate. The all-optical regenerator showed jitter tolerance up to 0.8 UIpp, while breaking the original input BER floor with improved BER at 10-9.","PeriodicalId":293243,"journal":{"name":"2007 IEEE Sarnoff Symposium","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123650844","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}
{"title":"Iterative MIMO detector using a group-wise approach","authors":"J. Koshy, J. Liberti, T.R. Hoerning","doi":"10.1109/SARNOF.2007.4567359","DOIUrl":"https://doi.org/10.1109/SARNOF.2007.4567359","url":null,"abstract":"For multiple-input multiple-output (MIMO) systems, space-time bit-interleaved coded modulation (ST-BICM) using iterative detection has been recognized as a method for achieving near-capacity performance. However, the a posteriori probability detector required for the conventional ST-BICM receiver is not amenable to practical implementation for high-rate MIMO due to its exponential complexity in rate. This motivated the development of a single-stream detector exhibiting polynomial complexity and capable of delivering performance comparable to the conventional detector under near-ideal conditions. However, under realistic operating scenarios, with possibly low-rank channel conditions and/or employing fewer receive antennas than transmitted streams, the performance gap between the single-stream detector and the conventional detector widens. With a view to enabling practical implementations of high-rate near-capacity MIMO, we propose a novel detector based on a group-wise approach that can be flexibly configured to deliver the best possible combination of performance and complexity over a wide range of realistic operating conditions.","PeriodicalId":293243,"journal":{"name":"2007 IEEE Sarnoff Symposium","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126582706","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}
{"title":"Experimental study on fan-beam cassegarian antenna fed by a 4-element binomial array","authors":"C. Gupta","doi":"10.1109/EIT.2006.252202","DOIUrl":"https://doi.org/10.1109/EIT.2006.252202","url":null,"abstract":"Present paper describes the development of a fan-beam cassegarian antenna unit being fed by a 4-element binomial array with centre frequency of 2.45 GHz with a 4 set of well matched microstrip dipole units.","PeriodicalId":293243,"journal":{"name":"2007 IEEE Sarnoff Symposium","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125231506","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}
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