Aravind R. Iyengar

Aravind R. Iyengar Ph.D. Senior Engineer Qualcomm Technologies Inc. Santa Clara, USA

Contact

+1 858 869-9274

Research Interests

Information & Coding Theory, Signal Processing & Wireless Communications

Sparse graph-based codes, iterative decoding. Applications to data communications & storage.

Publications

Synchronization Error Channels

• On the Capacity of Channels with Synchronization Errors
  A. R. Iyengar, P. H. Siegel and J. K. Wolf
  Submitted to the IEEE Transactions on Information Theory, Feb. 2013

  • Shorter version presented at ISIT 2011
    Modeling and Information Rates for Synchronization Error Channels
    Proceedings of the IEEE International Symposium on Information Theory, pp. 380-384
    31 Jul.-5 Aug. 2011, St. Petersburg, Russia

• Synchronization Errors in Magnetic Recording
  Write Channel Model for Bit-Patterned Media Recording
  A. R. Iyengar, P. H. Siegel and J. K. Wolf
  IEEE Transactions on Magnetics, Vol. 47, No. 1, pp. 35-45, Jan. 2011

  • Invited talk at the 21st Magnetic Recording Conference, 16-18 Aug. 2010, La Jolla, CA, USA

  • Shorter version presented at ISIT 2010
    Data-dependent Write Channel Model for Magnetic Recording
    Proceedings of the IEEE International Symposium on Information Theory, pp. 958-962
    13-18 Jun. 2010, Austin, TX, USA

Low-Complexity Decoding of a class of LDPC Codes

• Windowed Decoding of Spatially Coupled Codes
  A. R. Iyengar, P. H. Siegel, R. L. Urbanke and J. K. Wolf
  IEEE Transactions on Information Theory, Vol. 59, No. 4, pp. 2277-2292, Apr. 2013

  • Summary presented at ISIT 2011
    Windowed Decoding of Spatially Coupled Codes
    Proceedings of the IEEE International Symposium on Information Theory, pp. 2552-2556
    31 Jul.-5 Aug. 2011, St. Petersburg, Russia

• Windowed Decoding of Protograph-based LDPC Convolutional Codes over Erasure Channels
  A. R. Iyengar, M. Papaleo, P. H. Siegel, J. K. Wolf, A. Vanelli-Coralli and G. E. Corazza
  IEEE Transactions on Information Theory, Vol. 58, No. 4, pp. 2303-2320, Apr. 2012

  • Short version on memoryless erasure channels presented at ITW 2010
    Windowed Erasure Decoding of LDPC Convolutional Codes
    M. Papaleo, A. R. Iyengar, P. H. Siegel, J. K. Wolf and G. E. Corazza
    Proceedings of the IEEE Information Theory Workshop, pp. 1-5
    6-8 Jan. 2010, Cairo, Egypt

  • Short version on correlated erasure channels presented at ICC 2010
    Protograph-based LDPC Convolutional Codes for Correlated Erasure Channels
    A. R. Iyengar, M. Papaleo, G. Liva, P. H. Siegel, J. K. Wolf and G. E. Corazza
    Proceedings of the IEEE International Conference on Communications, pp. 1-6
    23-27 May 2010, Cape Town, South Africa

  • Invited talk at the Turbo-Coding conference 2010
    Latency Constrained Protograph-based LDPC Convolutional Codes
    G. E. Corazza, A. R. Iyengar, M. Papaleo, P. H. Siegel, A. Vanelli-Coralli and J. K. Wolf
    Proceedings of the 6th International Symposium on Turbo Codes & Iterative Information Processing, pp. 6-10
    6-10 Sep. 2010, Brest, France

Coding for Memories

• Rewrite Codes

  • Multilevel 2-Cell t-write Codes
    A. Bhatia, A. R. Iyengar, P. H. Siegel
    IEEE Information Theory Workshop
    3-7 Sep. 2012, Lausanne, Switzerland

  • Extended version with more results
    Lattice-based WOM Codes for Multilevel Flash memories
    A. Bhatia, M. Qin, A. R. Iyengar, B. Kurkoski, P. H. Siegel
    To be submitted to the IEEE Transactions on Information Theory, 2013

• Correcting “written-in” errors in magnetic recording
  LDPC Codes for the Cascaded BSC-BAWGN Channel
  A. R. Iyengar, P. H. Siegel and J. K. Wolf
  47th Annual Allerton Conference on Communication, Control and Computing, pp. 620-627
  30 Sep.-2 Oct. 2009, Monticello, IL, USA

Coding for Wireless Communications

• Thresholds for LDPC Codes over OFDM
  A. R. Iyengar, M. K. Dileep, A. Thangaraj and S. Bhashyam
  Proceedings of the 3rd International Conference on Communication Systems, Software and Middleware, pp. 37-42
  6-10 Jan. 2008, Bangalore, India

Non-binary low-density parity-check Codes

• Enhancing Binary Images of Non-Binary LDPC Codes
  A. Bhatia, A. R. Iyengar and P. H. Siegel
  Proceedings of the IEEE Global Telecommunications Conference, pp. 1-6
  5-9 Dec. 2011, Houston, TX, USA