Profile photo

Junyi Wang

3rd

Previous positions

  • Senior Software Engineer at Qualcomm
  • Senior DSP Firmware/Software Engineer at LinkQuest Inc.

Education

University of Louisiana at Lafayette, PHD, Compueter Engineering

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Background

Summary

Ph.D.in Computer Engineering Staff Software Engineer in Qualcomm Technologies Inc., San Diego

Experience

  • Staff Software Engineer

    Qualcomm

    November 2018 – Present(11 months)San Diego, California

    Software in LTE

  • Senior Software Engineer

    Qualcomm

    June 2014 – November 2018(4 years 5 months)Greater San Diego Area

    Software in LTE

  • Senior DSP Firmware/Software Engineer

    LinkQuest Inc.

    January 2013 – June 2014(1 year 5 months)Greater San Diego Area

    Develop software/firmware of digital signal processing (DSP) and image processing, with MATLAB, C/C++ and assembly language, for ultrasonic medical instruments; develop firmware in digital signal processors and microcontrollers, in C/C++, for some control mechanisms in ultrasonic medical instruments; develop some software of windows graphic user interfaces in C/C++; develop drivers and application softwares for a touch screen and a mechanical control panel, in C/C++, for ultrasonic medical instruments

  • Teaching assistant

    University of Louisiana at Lafayette

    September 2008 – December 2012(4 years 3 months)

    Grader of Design and Analysis of Algorithm

  • Summer intern

    Bell Laboratories

    June 2012 – August 2012(2 months)Holmdel, New Jersey

    Optimized DSP designs/algorithms of digital Nyquist FIR filters and adaptive butterfly FIR equalizers for 2×2 MIMO 16QAM signals for Nyquist-WDM systems

  • Summer intern researcher

    Bell Laboratories

    June 2011 – August 2011(2 months)

    Designed and investigated DSP of digital Nyquist FIR filters and adaptive butterfly FIR equalizers for 2×2 MIMO QPSK signals for Nyquist-WDM systems

  • Summer collaboration student

    Bell Laboratories

    June 2010 – August 2010(2 months)New Jersey

    Implemented off-line Maximum A Posteriori (MAP) Detection for QPSK signal

  • Software Engineer

    Huawei

    July 2007 – August 2008(1 year 1 month)

    Participated in 3 projects, experienced each stage of the software life development cycle, developed and tested some network-processor (NP) layer 2 and layer 3 driver for high-speed routers/switches using C language in VxWorks and Linux

Education

Languages

  • English

  • Chinese

Publications

  • Matched Filter Design for RRC Spectrally Shaped Nyquist-WDM Systems

    IEEE Photonics Technologies Letter

    2013

    Authors (3):
    • Junyi Wang,
    • Chongjin Xie,
    • Zhongqi Pan
  • Optimization of DSP to Generate Spectrally Efficient 16QAM Nyquist-WDM Signals

    IEEE Photonics Technoloy Letter

    2013

    Authors (3):
    • Junyi Wang,
    • Chongjin Xie,
    • Zhongqi Pan
  • Chromatic Dispersion Estimation Methods using Polynomial Fitting in PDM-QPSK or Other Multilevel-Format Coherent Optical Systems

    Optical Fiber Technology (OFT), Elsevier

    2013

    Authors (5):
    • Junyi Wang,
    • Jessica Jiang,
    • Xuan(Sean) He,
    • Bruce (Yi) Weng,
    • Zhongqi Pan
  • Reducing Equalizer Complexity in Coherent Receivers for Nyquist Spectrally Shaped Systems with Matched Filters

    Optical Fiber Communication Conference

    2013

    Authors (3):
    • Junyi Wang,
    • Chongjin Xie,
    • Zhongqi Pan
  • Generation of Spectrally Efficient Nyquist-WDM QPSK Signals using digital FIR or FDE filters at Transmitters

    IEEE Journal of Lightwave Technology

    2012

    Authors (3):
    • Junyi Wang,
    • Chongjin Xie,
    • Zhongqi Pan
  • Generation of Spectrally Efficient Nyquist-WDM QPSK Signals using DSP Techniques at Transmitter

    OFC

    2012

    Authors (3):
    • Junyi Wang,
    • Chongjin Xie,
    • Zhongqi Pan
  • 8×400-Gbit/s PDM-QPSK with 100 GHz Channel Spacing Over 2000km Transmission Using MAP Detection

    CLEO

    2011

    Authors (6):
    • Junyi Wang,
    • Xuan(Sean) He,
    • Junyi Wang,
    • Junyi Wang,
    • Junyi Wang,
    • Zhongqi Pan
  • Frequency Domain PMD Monitoring and Compensation in High-Speed Coherent Systems with Digital Signal Processing

    CLEO

    2011

    Authors (4):
    • Junyi Wang,
    • Xuan(Sean) He,
    • Junyi Wang,
    • Zhongqi Pan
  • Ultra-Wide Range In-Service Chromatic Dispersion Measurement using Coherent Detection and Digital Signal Processing

    ACP

    2011

    Authors (4):
    • Junyi Wang,
    • Jessica Jiang,
    • Junyi Wang,
    • Zhongqi Pan

Skills & Expertise

  • Algorithms
  • L2/L3 protocols
  • Matlab
  • Digital Signal Processors
  • DSP
  • Embedded Software
  • Fiber Optics
  • Image Processing
  • Optics
  • RTL Verilog
  • Linux
  • Software Development Life Cycle
  • C
  • C++
  • VPI transmission maker
  • Operating Systems
  • Java
  • Computer Architecture
  • Assembly Language

Courses

University of Louisiana at Lafayette

  • Advanced Topics in Computer Architecture(EECE 639)
  • Principles of Computer Architecture(EECE 530)
  • Parallel Processing Organization(EECE 531)
  • VLSI design(EECE 585)
  • Principles of Operating System Theory(CMPS 555)
  • Principles of Computer Communicat&Network(CMPS 513)
  • Mobile Computing&Applications(CMPS 576)
  • Topics in Lightwave Networks(TLCM 521)