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Ultra Wideband Systems Publications

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

• R. Thirugnanam and D.S. Ha, "A Feasibility Study on Frequency Domain ADC for Impulse-UWB Receivers,” International Conference on Circuits & systems for Communications, 5 pages, May 2008.
• V. Chawla, R. Thirugnanam, D.S. Ha, and T.M. Mak, "Design of a Data Recovery Block for Communications over Power Distribution Networks of Microprocessors,” International Conference on Circuits & Systems for Communications, 5 pages, May 2008.
• N. August, H.-J. Lee, and D.S. Ha, "Enabling Distributed Medium Access Control for Impulse-Based Ultra Wideband Radios," IEEE Transactions on Vehicular Technology, Vol. 56, No. 3, pp. 1064-1075, May 2007.
• R. Thirugnanam, D.S. Ha, and T. M. Mak, "Data Recovery Block Design for Impulse Modulated Power Line Communications in a Microprocessor," IEEE Computer Society Annual Symposium on VLSI, pp. 153 - 158, May 2007.
• N. August and D.S. Ha, “Operation, System Architectures, and Physical Layer Design Considerations of Distributed MAC Protocols for UWB,” IEEE Transactions on Microwave Theory and Techniques, Vol. 54, No. 7, pp. 3001-3012, July 2006.
• R. Thirugnanam, D.S. Ha, B.H. Park, and S.S. Choi, “Design of a Tunable Fully Differential GHz Range Gm-C Lowpass Filter in 0.18 μm CMOS for DS-CDMA UWB Transceivers,” International Symposium on Circuits and Systems, pp. 2377-2380, May 2006.
• W.C. Chung, N.J. August, and D.S. Ha, “Impact of Ultra Wideband (UWB) Radio Range on Wireless Sensor Networks,” International Conference on Condition Monitoring and Diagnosis, Session 3.14 (4 pages), April, 2006.
• H.-J. Lee, D.S. Ha, and S.S. Choi, “A 3-5 GHz CMOS UWB LNA with Input Matching Using Miller Effect,” International Solid-State Circuits Conference, Paper 11.6, February, 2006.
• N.J. August, W.C. Chung and D.S. Ha, “Distributed MAC Protocols for Ultra Wideband Ad Hoc and Sensor Networks,” Radio and Wireless Symposium, pp. 511-514, January, 2006.
• N.J. August, H.-J. Lee, and D.S. Ha, “Design of a Pulse Sensor to Detect Medium Activity in UWB Networks,” International Conference on Ultra Wideband, pp. 70-75, September 2005.
• R. Thirugnanam, D.S. Ha, and S.S. Choi, “4-bit 1.4 GS/s Low Power Folding ADC for UWB Systems”, International Conference on Ultra Wideband, pp. 536-541, September 2005.
• S. Wang, D.S. Ha, and S.S. Choi, “A 6-bit 5.4-Gsamples/s CMOS D/A Converter for DS-CDMA UWB transceivers”, International Conference on Ultra Wideband, pp. 333-338, September 2005.
• S. Jose, H-.J. Lee, D.S. Ha, and S.S. Choi,. “A Low-power CMOS Power Amplifier for Ultra wideband (UWB) Applications,” International Symposium on Circuits and Systems, pp. 5111–5114, May 2005.
• H.-J. Lee, D.S. Ha, and S.S. Choi, “A Systematic Approach to CMOS Low Noise Amplifier Design for Ultra wideband Applications,” International Symposium on Circuits and Systems, pp. 3962–3965, May 2005.
• N.J. August and D.S. Ha, “An Efficient UWB Radio Architecture for Busy Signal MAC Protocols,” IEEE Conference on Sensor and Ad Hoc Communications and Networks, (10 pages), October, 2004.
• N.J. August, H.-J. Lee, and D.S. Ha, “An Efficient Multi-User UWB Receiver for Distributed Medium Access in Ad Hoc and Sensor Networks,” IEEE Radio and Wireless Conference, pp. 455-458, September, 2004.
• W.C. Chung, D.S. Ha, and David (Jianjun) Ni, “Performance Evaluation of an Ultra Wideband Radiolocation System with Directional Beacon,”IEEE Radio and Wireless Conference, pp. 59-62, September, 2004.
• N.J. August, H.-J. Lee, and D.S. Ha, “Pulse Sense: A Method to Detect a Busy Medium in Pulse-Based Ultra Wideband (UWB) Networks,” IEEE Conference on Ultra Wideband Systems and Technologies, pp. 366-370, May 2004.
• N.J. August, R. Thirugnanam, and D.S. Ha, “An Adaptive UWB Modulation Scheme for Optimization of Energy, BER, and Data Rate,”IEEE Conference on Ultra Wideband Systems and Technologies, pp. 182-186, May 2004.
• H.-J. Lee, D.S. Ha, and H.-S. Lee, “Toward Digital UWB Radios: Part I – Frequency Domain UWB Receiver with 1 bit ADCs,” IEEE Conference on Ultra Wideband Systems and Technologies, pp. 248-252, May 2004.
• H.-J. Lee, D.S. Ha, and H.-S. Lee, “Toward Digital UWB Radios: Part II – A System Design to Increase Data Throughput for a Frequency Domain UWB Receiver,” IEEE Conference on Ultra Wideband Systems and Technologies, pp. 253-257, May 2004.
• N.J. August and H.-J. Lee, “Tackling Impulse UWB in Frequency Domain,”EE Times, May 17, 2004.
• N.J. August, W.C. Chung and D.S. Ha, "Energy Efficient Methods of Increasing Data Rate for Ultra Wideband (UWB) Communications Systems," IEEE Conference on Ultra Wideband Systems and Technologies, pp. 280-284, November 2003.
• W.C. Chung and D.S. Ha, "An Accurate Ultra Wideband (UWB) Ranging for Precision Asset Location," IEEE Conference on Ultra Wideband Systems and Technologies, pp. 389-393, November 2003.
• H.-J. Lee, D.S. Ha, and H.-S. Lee, "A Frequency-Domain Approach for All-Digital CMOS Ultra Wideband Receivers," IEEE Conference on Ultra Wideband Systems and Technologies, pp. 86-90, November 2003.
• K. Marsden, H.-J. Lee, D.S. Ha, and H.-S. Lee, "Low Power CMOS Re-programmable Pulse Generator for UWB Systems," IEEE Conference on Ultra Wideband Systems and Technologies, pp. 443-337, November 2003.
• W.C. Chung and D.S. Ha, "On the Performance of Bi-Phase Modulated UWB Signals in a Multipath Channel," IEEE Vehicular Technology Conference, pp. 1654-1658, April 2003.
• H-J. Lee and D.S. Ha, "Frequency Domain Approach for CMOS Ultra-Wideband Radios," IEEE Computer Society Annual Symposium on VLSI, pp. 236-237, February 2003.