Hari Sankar

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					                                             HARI SANKAR
1100 Hensel Dr. #V1A                                                                 Phone: (408) 390 9217 (C)
College Station, TX 77840                                                            E-mail: hari@ee.tamu.edu

OBJECTIVE:
 Seeking a challenging full-time position for Spring 2006 in the area of wireless communication systems design.

EDUCATION:
- Ph. D. in Electrical Engineering (Communications)                                  Fall '00 - present
  Texas A & M University, College Station, USA.
  Degree Plan GPA: 3.93/4.0
  Advisor: Dr. Krishna R. Narayanan
  Dissertation Title: “LDPC Code Based Bandwidth-Efficient Schemes for Wireless Communications”

- B. Tech. in Electrical Engineering                                                July '96 - June '00
  Indian Institute of Technology, Madras (IITM), India
  GPA: 8.29/10
  Senior Project: “Adaptive Telephone-Line Echo-Canceler Trained with Speech on ADSP-2181 Processor”

RELEVANT COURSEWORK:
 Statistical Communications             Modulation Theory                       Detection & Estimation
 Spread Spectrum & CDMA                 Wireless Communication                  Advanced Channel Coding
 Advanced DSP                           Information Theory                      Adaptive Signal Processing

PROFESSIONAL EXPERIENCE:
- Internship at QUALCOMM New England                                                      Mar. '05 - May '05
   - Characterization of Low-density parity-check (LDPC) code and Irregular Repeat Accumulate (IRA) code
      performance for IEEE 802.11n systems
   - Analysis of complexity, latency and memory-requirements of LDPC codes, turbo codes and convolutional
     codes with different encoder and decoder structures

- Internship at Standards Engineering, QUALCOMM                                            Sep. '04 - Mar. '05
   - Characterization of UMTS TDD system with different receiver structures such as Rake, LMS and RLS
     Equalizers and performance comparison with Multiuser Detector (MUD)
   - Implementation of variable-rate power-control schemes for UMTS TDD systems
   - Familiar with WCDMA, TD-CDMA, TD-SCDMA, cdma2000 and IS-95 standards

- Internship at Corporate R&D, QUALCOMM                                          May '02 - Aug. '02
   - Design of rate-compatible LDPC and IRA codes for 1xEV-DO (HDR) and MIMO-OFDM

- Graduate Research Assistant, Texas A&M University (as part of Ph. D. dissertation)         June '01 - present
   - Design and analysis of iterative coding schemes such as LDPC and turbo codes for AWGN and fading
     channels
   - Implementation of hardware-friendly architectures for LDPC codes
   - Design of LDPC codes for higher-order constellations such as QAM
   - Design of capacity achieving schemes and optimal power-allocation algorithms for adaptive multi-
     carrier modulation schemes such as OFDM and MIMO-OFDM with constrained constellations
   - Design of LDPC and IRA codes for OFDM

PATENTS PENDING:
 - “Power Control in UMTS TDD Systems”, with Juan Montojo and Gang Bao, QUALCOMM
 - 2 additional patents to be filed

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PUBLICATIONS:
 - H. Sankar and K. R. Narayanan, “Memory-Efficient Sum-Product Decoding of LDPC codes”, IEEE Trans. on
Communications, vol. 52, no. 8, pp. 1225-1230, Aug. 2004.
 - H. Sankar and K. R. Narayanan, “Design of IRA Codes for OFDM with partial CSI”, accepted for publication
in IEEE Trans. on Wireless Communication.
 - H. Sankar, N. Sindhushayana, K. R. Narayanan, “Design of LDPC Codes for high-order constellations,” to be
submitted to Trans. on Wireless Communications.
 - H. Sankar and K. R. Narayanan, “Design of Near-Optimal Coding Schemes for Adaptive Modulation with
Practical Constraints”, to be submitted to Trans. on Wireless Communications.
 - H. Sankar and K. R. Narayanan, “Design of IRA Codes for OFDM with partial CSI”, WCNG Conf., University
of Texas at Austin, Oct. 23, 2004.
 - H. Sankar, N. Sindhushayana, K. R. Narayanan, “Design of LDPC Codes for high-order constellations,” IEEE
Globecomm, vol.5, pp. 3113-3117, Nov. 29 – Dec. 3, 2004, Dallas, USA.
 - H. Sankar and K. R. Narayanan, “Design of Near-Optimal Coding Schemes for Adaptive Modulation with
Practical Constraints”, submitted to ICC „06.
 - H. Sankar, B. A. Bjerke and J. W. Ketchum, “Comparison of Turbo and LDPC Decoders”, submitted to ICC
„06.

COURSE PROJECTS:
- Implementation of a space-time code based on Alamouti scheme
- Implementation of a secure link between computers based on an RSA-cryptosystem
- Image compression using Discrete Cosine Transforms (DCT), Quantization and Huffman coding (JPEG)

COMPUTER SKILLS:
 High-level languages   : C, C++, PASCAL, BASIC
 Operating Systems      : Linux, MS Dos, Windows
 Software packages      : Matlab, TEX
 Low-level languages    : Intel 8086 & ADSP 21xx Assembly languages
 Software packages      : Orcad, Pspice, SAS
 Hardware tools         : Spectrum Analyzer, Oscilloscopes

HONORS:
- Recipient of TxTEC Fellowship for the year 2000-2001 at Texas A&M University
- Top 0.2% in the IIT Joint entrance examination (ranked 164 among 100,000 examinees) conducted by the
  Government of India in May 1996
- Topper in the Regional Math Olympiad (RMO) of the state of Kerala, India in 1995 and appeared for the Indian
  National Math Olympiad (INMO) in the same year (RMO and INMO are conducted by the National board for
  Higher Mathematics, India)
- Recipient of the National Talent Search Scholarships awarded by the National Council of Educational Research
  and Training (NCERT), Govt. of India

PROFESSIONAL ACTIVITIES:
- Treasurer, Electrical Engg. Graduate Students Association, Texas A&M University
- Student Member, IEEE
- Peer Reviewer: IEEE Trans. On Wireless Communications, IEEE Communications Letters, VTC, Globecom

WORK AUTHORIZATION:
- Authorized to work in US through Practical Training (F-1 visa)




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