Apr 2010 to 2000 Quantitative Trader/AnalystBroadcom Corporation Yardley, PA Jun 2009 to Mar 2010 Member of Technical Staff (MTS), Hardware DesignAdvanced Micro Devices (AMD) Schaumburg, IL May 2006 to May 2009 Senior Systems and Architecture EngineerThe University of Arizona Tucson, AZ Jan 2003 to May 2006 Research AssistantHengsheng Xingchuang Technologies Co. Ltd
Jun 2000 to Dec 2002 Systems and Architecture EngineerHuawei Technologies Co. Ltd
Apr 1999 to Apr 2000 China, Software Engineer
Education:
University of Arizona Tucson, AZ Jan 2003 to May 2004 Master of Science in Industrial EngineeringXi'an Jiaotong University Sep 1996 to Apr 1999 Master of Engineering in Electrical EngineeringXi'an Jiaotong University Sep 1991 to Jun 1996 Bachelor of Engineering in Electrical Engineering
Us Patents
Window Position Optimization For Pilot-Aided Ofdm System
Yan Li - Newtown PA, US Feng Huang - Hoffman Estates IL, US Ravikiran Rajagopal - Yardley PA, US Troy Schaffer - Newtown PA, US
Assignee:
Advanced Micro Devices, Inc. - Sunnyvale CA
International Classification:
H04K 1/10
US Classification:
375260, 370343, 370208, 370252, 375316
Abstract:
A window position optimization for a pilot-aided OFDM system is disclosed. A method of reducing aliasing in an orthogonal frequency division multiplexing (OFDM) system, using window optimization and pilots comprises receiving an RF signal including a pilot, generating a channel frequency response estimate, interpolating the channel estimate to calculate a pilot carrier frequency response, and dynamically selecting a window to capture a channel impulse response to prevent aliasing.
Null Detection And Erasure Decoding For Frequency Selective Channels In A Broadcasting System
Yan Li - Newtown PA, US Feng Huang - Hoffman Estates IL, US Ravikiran Rajagopal - Yardley PA, US Troy Schaffer - Newtown PA, US
Assignee:
ADVANCED MICRO DEVICES, INC. - Sunnyvale CA
International Classification:
H04L 27/28
US Classification:
375346
Abstract:
A null detection and erasure decoding process for a frequency selective channel in a broadcasting system. An orthogonal frequency-division multiplexing (OFDM) receiver receives an input bitstream, determines a noise level of the received input bitstream, and then detects a null in the input bitstream based on the noise level. Once a null is detected, the presence of the null is signaled to a decoder, allowing the decoder to process the null as an erasure.