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Environmental Modeling with Fingerprint Sequences for Topological Global Localization
(2003)Proceedings. 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2003), October 27-31, 2003, Las Vegas, NevadaConference Paper -
Mobile Robot Miniaturization
(1993)Lecture Notes in Control and Information Sciences ~ Experimental robotics III : the 3rd International Symposium, Kyoto, Japan : October 28-30, 1993Conference Paper -
May You Have a Strong (-Typed) Foundation, Why Strong-Typed Programming Languages Do Matter
(2004)Proceedings. 2004 IEEE International Conference on Robotics and Automation, April 26-May 1, 2004, Hilton New Orleans Riverside, New Orleans, LA, USAConference Paper -
Towards Improving Robotic Software Reusability Without Losing Real-Time Capabilities
(2004)Proceedings of the First International Conference on Informatics in Control, Automation and Robotics : Setúbal, Portugal, August 25 - 28, 2004Conference Paper -
3D-Odometry for rough terrain - Towards real 3D navigation
(2003)Proceedings of the 2003 IEEE International Conference on Robotics and Automation. Volume 1Conference Paper -
Bibliometric Analysis as a new Business Area in Libraries: Theory and Practice
(2006)Proceedings of the Asia-Pacific Conference on Library & Information Education & Practice 2006 (A-LIEP 2006). Preparing Information Professionals for Leadership in New AgeConference Paper -
Optimal Ranking of Test Items using the Rasch Model
(2016)2016 54th Annual Allerton Conference on Communication, Control, and Computing (Allerton)We study the problem of ranking test items, i.e., the ordering of items according to the amount of information they provide on the latent trait of the respondents. We focus on educational applications, where instructors are interested in ranking questions so as to select a small set of informative questions in order to efficiently assess the students' understanding on the course material. Using the Rasch model for modeling student responses, ...Conference Paper -
A 3.8Gb/s large-scale MIMO detector for 3GPP LTE-Advanced
(2014)2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)This paper proposes - to the best of our knowledge - the first ASIC design for high-throughput data detection in single carrier frequency division multiple access (SC-FDMA)-based large-scale MIMO systems, such as systems building on future 3GPP LTE-Advanced standards. In order to substantially reduce the complexity of linear soft-output data detection in systems having hundreds of antennas at the base station (BS), the proposed detector ...Conference Paper -
Recovery Guarantees for Restoration and Separation of Approximately Sparse Signals
(2011)2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton)In this paper, we present performance guarantees for the recovery and separation of signals that are approximately sparse in some general (i.e., basis, frame, over-complete, or incomplete) dictionary but corrupted by a combination of measurement noise and interference that is sparse in a second general dictionary. Applications covered by this framework include the restoration of signals impaired by impulse noise, narrowband interference, ...Conference Paper -
Subset-Codebook Precoding for 1-bit Massive Multiuser MIMO
(2017)2017 51st Annual Conference on Information Sciences and Systems (CISS)We consider a massive multiuser MIMO downlink scenario with 1-bit digital-to-analog converters. QPSK information symbols are transmitted to the users by a channel-dependent mapping of the symbols to 1-bit DAC signals that are transmitted from each base station (BS) antenna. The mapping is selected to emulate the desired information bearing QPSK symbols at the users. Non-linear precoding is considered, where the mapping from the information ...Conference Paper