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Meetings: Usually
second Monday of the month (except for July and August)
Location:
National Semiconductor, Building E Conference Center, 2900 Semiconductor Dr., Santa Clara, CA
95051
(Near the intersection of Lawrence and Central Expressway)
Directions: NSC_Campus_Map.jpg
Free Parking:
National Semiconductor parking lot.
Time:
6:30pm: Fast Food & drinks ($2 Donation Recommended towards
Refreshments)
7:00pm: Announcements
7:05pm: Talks starts
8:15pm: Adjourn
Subscribe to
Announcements:
Send an email to:
LISTSERV[at]LISTSERV.ieee.org
subscribe scv-sps <enter your email address here, less the brackets>
Future meetings, seminars and events:
Date: Nov 9, 2009
Title: Digital Compensation of Dynamic Acquisition Errors at the Front-End of High-Performance A/D Converters
Speaker: Dr. Parastoo Nikaeen, Netlogic Microsystems (This talk is based on the speaker's doctoral work at Stanford University.)
Abstract:
In A/D converter applications such as wireless base stations, IF sub-sampling is an attractive method for minimizing component count and system cost. By applying this method, one or more steps of down-conversion are removed from the receiver path and some of the analog front-end signal processing functions can be moved to the digital domain. In such a solution, the ADC's linearity at high input frequencies becomes a critical issue. Despite the use of a dedicated track-and-hold amplifier (THA), nonlinearities in the circuit's input network often introduce dynamic errors that limit the performance of the ADC at high input frequencies.
In this talk, I will present a digital enhancement scheme that is specifically tailored to remove high frequency distortion caused by the dynamic nonlinearities at the sampling front-end of ADCs. The basic concept of digital compensation here is to apply the inverse nonlinear function to the digital output of the ADC in order to minimize its error over the desired frequency range. Conceptually, a nonlinear system with memory can be modeled with a Volterra series. However, the inverse Volterra series becomes very complex as the order of nonlinearity and memory in the system increases and it requires intensive computational power that is impractical even in today's fine-line technology. Our proposed algorithm uses information about sources of nonlinearities and judicious modeling to simplify the digital post processing scheme. Applying the method to a 14-bit, 155-MS/s ADC provides > 83 dB SFDR up to f_in = 470 MHz. The post-processing block is estimated to consume 52 mW and occupy 0.54 mm^2 in 90-nm CMOS.
Biography:
Parastoo Nikaeen received the B.S. degree in electrical engineering from Sharif University of Technology, Tehran, Iran, in 2001 and the M.S. and Ph.D. degrees in electrical engineering from Stanford University, Stanford, CA, in 2004 and 2008, respectively. Her doctoral research focused on modeling and correction of nonlinear errors in analog-to-digital converters.
During summer 2006, she was with Rambus Inc. Los Altos, CA, where she worked on design and characterization of sampler architectures at the front-end of serial communication receivers. She is currently with NetLogic Microsystem Inc, Mountain View, CA designing analog/mixed-signal integrated circuits for high-speed data communication systems.
Date: Dec 14, 2009 (Co-sponsored with IEEE ComSoc SCV)
Title: Next-generation mobile WiMAX (802.16m) Update
Speaker: Dr. Jong-Kae (J.K.) Fwu, Intel Corporation
Abstract:
To meet the tremendous demand and growth for mobile Internet and wireless multimedia applications, the IEEE 802.16 Working Group Task Group m (TGm) has been developing a next-generation mobile WiMAX system (4G) since early 2007. The next-generation mobile WiMAX system, as a new amendment of the IEEE 802.16 standard (i.e., IEEE 802.16m), will provide enhancements including higher throughput/mobility, higher user capacity, and lower latency while maintaining full backward compatibility with the existing mobile WiMAX systems (802.16e). This presentation provide a high level tutorial on the prominent technical features and design of IEEE 802.16m and the ongoing technologies in the evolution toward the next-generation WiMAX network. It is focused on the general overall 16m system and particularly PHY related perspectives.
Biography:
Dr. Jong-Kae (J.K.) Fwu presently serves as the vice-chair of IEEE 802.16 Task Group m (TGm), a task group focusing on defining next generation WiMAX for mobile internet evolution. He is also an Assistant Technical Editor of the IEEE 802.16m Mobile Broadband Wireless Standard - Advanced Air interface. He has been actively contributing to IEEE 802.16m and the WiMAX Forum in various areas such as PHY Structure, UL Control, multicast/broadcast services and multicarrier operation.
Dr. Jong-Kae (J.K.) Fwu received his B.S. degree from National Tsing-Hua University, Taiwan, in 1992. He received his M.S. (1993) and Ph.D. (1996) in Electrical Engineering from the State University of New York (SUNY) at Stony Brook.
Since 2000, he has been working at Intel Corporation, and has worked on various wireless and wireline communication technologies, including WiMAX, WiFi, and ADSL/SHDSL. He is currently a Senior Wireless Systems Architect of Wireless Standards at the Mobile Wireless Group in Intel. Prior to Intel, he worked on design and modeling of wireless cellular receivers (TDMA IS-136) for Lucent Technologies. He holds several patents on communication system designs.
Past Events and Meeting Abstracts and Slides
Oct 12, 2009: Detection of Information Flow and Anonymous Networking ~IEEE SPS Distinguished Lecturer~
Sep 21, 2009: Low-Voltage Oversampling Analog-to-Digital Conversion
Sep 17, 2009: Monitoring video quality inside a network ~IEEE SPS Distinguished Lecturer~
Jun 22, 2009: Adaptive Learning in a World of Projections
Mar 25, 2009: WiMAX Update: IEEE 802.16m and WiMAX future
Feb 9, 2009: The Scalable Communication Core: A Multi-Core Reconfigurable Wireless Baseband Prototype
Feb 7, 2009: SPS SCV Workshop on FPGAs for Digital Signal Processing Applications
Jan 12, 2009: Dynamic Graphs
Dec 8, 2008: Exploiting Real World Channels for Increased Capacity
Nov 3, 2008: Design Techniques and CMOS Implementation of Low Noise Amplifier (LNA)
Oct 20, 2008: Multichip module packaging and its impact on architecture
Sep 22, 2008: Past and Future of Digital Watermarking
Aug 30, 2008: SPS SCV Workshop on Bio-informatics and Bio-signal Processing
June 2, 2008: Enhancing Image Fidelity through Spatio-Spectral Design for Color Image Acquisition, Reconstruction, and Display
May 12, 2008: Content-Adaptive Efficient Resource Allocation for Packet-Based Video Transmission
Apr 14, 2008: RF Systems Design :Fundamental Theory and WiMAX Examples
Mar 10, 2008: Digital Fingerprinting for Multimedia Forensics
Feb 11, 2008: Simplified Fast Motion Estimation: Simplified and Unified Multi-Hexagon Search (SUMH) with Context Adaptive Lagrange Multiplier (CALM)
Jan 7, 2008: An Open Baseband Processing Architecture for Future Mobile Terminal Design
Dec 10, 2007: Re-Live the Movie "The Matrix": From Harry Nyquist to Image-Based Rendering
Nov 12, 2007: Efficient Techniques for MPEG-2 to H.264 VideoTranscoding
Oct 8, 2007: Overview of Multimedia Signal Processing on Multi-Core Processors
Sep 17, 2007: Transceiver Designs for Multicarrier Transmission
Sep 10, 2007: Overview of WiMax Technology and Evolution {Slides}
May, 2007: Tesla Roadster: Embedded microprocessors and Design trade-offs!
March, 2007: A Simulation
Model for IEEE 802.11n
Feb 12, 2007: A/D and D/A
Converters with Integrated High-speed Compression
May 12, 2006: New
Directions in Home Theater Systems
Apr 10, 2006: Correcting
Distortion in Multi-media Audio Terminals
Feb 13, 2006: Distributed Wireless Communication: A Shannon-Theoretic Perspective on Fading Multihop Networks {Slides}
Dec 12, 2005: Mobile WiMAX: True Broadband Wireless Enabled {Slides}
Jun
13, 2005: Using Technology to Keep Other Countries
Honest
Apr 25, 2005: How many
antennas does it take to get broadband wireless access? - The story of MIMO
{Slides}
Jan 10, 2005: Converting
MATLAB Algorithms to FPGA or ASIC Designs
Dec 13, 2004:
Reconfigurable Systems Emerge {Slides}
Nov 08, 2004: Nonlinear adaptive
systems
Sept 13, 2004: Anytime,
Anywhere IP Communications
June 14, 2004: Fortran
95, or Matlab meets C++
April 12, 2004:On the
Deployment of the Voice Biometric: Challenges and Best Practices
March 08, 2004: Telephony
Speech Recognition Application Testing {Slides}
Feb 05, 2004:Speech
Technology for Computer Assisted Language Learning (CALL) {Slides}
Charter
IEEE Santa Clara Valley Signal Processing Society
focuses on all aspects of the theory and application of Signals involving filtering,
coding, transmitting, estimating, detecting, analyzing, recognizing,
synthesizing, recording, and reproducing signals. The term
"signal" includes audio, video, speech, image, communication,
geophysical, sonar, radar, medical, musical etc.
2007-2009 Officers
Chair
Tokunbo Ogunfunmi
tokunbo[at]ieee[dot]org
Vice Chair
Xiaoshu Qian
xiaoshu[dot]qian[at]intel[dot]com
Treasurer
Vlad Potanin
vlad[dot]potanin[at]nsc[dot]com
Secretary
Douglas Chan
douglas[dot]chan[at]ieee[dot]org
Program Coordinator
Yen-Kuang Chen
y[dot]k[dot]chen[at]ieee[dot]org
Photos from past meetings
URL:
http://www.ewh.ieee.org/r6/scv/sps
2006 Officers
Chairman
M Saseetharran
Vice Chairman/
Treasurer
Man Po (Bill) Lam
Program Co-ordinator
Brian Sublett
Treasurer
Ozur Oyman
Secretary
Madan Ankapura
2005 Officers
Chairman
M Saseetharran
Vice Chairman/
Treasurer
Man Po (Bill) Lam
Program Co-ordinator
Brian Sublett
Secretary
Vikash Rungta
Just Joined
Madan Ankapura
2004 Officers
Chairman
M Saseetharran
Vice Chairman
P S Chang
Secretary
Nelson Zierbach
Treasurer
V (Ramki) Ramakrishna
Auxiliary Officer
Kenneth White
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