Mehul Motani, Venugopal V. Veeravalli and Chris Heegard,
``On Capacity and Spreading in CDMA Systems,''
2000 IEEE Information Theory Symposium,
Sorrento, ITALY, June, 2000.
Mehul Motani, Venugopal Veeravalli and Chris Heegard, ``On Multiple
Access Spread Spectrum Systems,'' Second International Conference on
Information, Communications & Signal Processing (ICICS'99), 7-10
December 1999, Hotel Mandarin, Singapore.
Kenneth Andrews,Chris Heegard and Dexter Kozen
``Interleaver Design Methods for Turbo Coding,''
1998 IEEE Information Theory Symposium,
Cambridge, MA, August, 1998.
Mehul Motani and Chris Heegard,
``The Viterbi Algorithm Meets the Key Equation,''
1998 IEEE Information Theory Symposium,
Cambridge, MA, August, 1998.
Matthew Shoemake and Chris Heegard,
``A New Turbo Code for 8-PSK Modulation,''
1998 IEEE Information Theory Symposium,
Cambridge, MA, August, 1998.
Ivelisse Rubio, Moss Sweedler and Chris Heegard,
``Gröbner Bases for 0-Dimensional Ideals
with Applications to Coding Theory,''
Algebraic Geometry and Coding Theory-6,
Marseilles, FRANCE, June, 1997.
Matthew Shoemake and Chris Heegard,
``Computationally Efficient Turbo Decoding
with the Bi-directional Viterbi,''
1997 IEEE Information Theory Symposium,
Ulm, GERMANY, June-July, 1997.
Ivelisse Rubio, Moss Sweedler and Chris Heegard,
``Gröbner Bases for Linear Recursion Relations on m-D Arrays
and Applications to Decoding,''
1997 IEEE Information Theory Symposium,
Ulm, GERMANY, June-July, 1997.
Chris Heegard,
``Shaping, Coding and Channel Capacity for the Gaussian Channel,''
1996 IEEE Information Theory Workshop,
Haifa, ISRAEL, June, 1996.
Chris Heegard,
``Cable Modem Technology: Hopes, Dreams and Reality,''
Workshop on Frontiers in Distributed Information Systems,
Key West, Florida, April 28 - May 1, 1996.
Chris Heegard,
``Constellation Shaping for the Gaussian Channel,''
1995 IEEE Information Theory Symposium,
Whistler, B.C., CANADA, September, 1995.
Eric Rossin, Chris Heegard and David Rowe,
``Punctured, Rotationally Invariant Trellis Coding,''
1995 IEEE Information Theory Symposium,
Whistler, B.C., CANADA, September, 1995.
Chris Heegard,
``Modulation and FEC for Digital TV Transmission,''
1995 IEEE Information Theory Workshop, Rydzyna, POLAND, June, 1995.
Chris Heegard,
``Digital TV,''
Workshop on Emerging Opportunities for Information Technology,
Key West, Florida, April 30 - May 2, 1995.
Talal Shamoon and Chris Heegard,
``Adaptive Update Algorithms for Fixed Dictionary Lossless Data Compressors,''
1994 IEEE Information Theory Symposium,
Trondheim, NORWAY, June 27 - July 1, 1994.
Nagabhushana T. Sindhushay and Chris Heegard
``Symbolic Dynamic Techniques for Trellis Group Codes,''
1994 IEEE Information Theory Symposium,
Trondheim, NORWAY, June 27 - July 1, 1994.
Keith Saints, Ivelisse Rubio and Chris Heegard,
``Decoding Algebraic-Geometric Codes Using Gröbner Bases,''
1994 IEEE Information Theory Symposium,
Trondheim, NORWAY, June 27 - July 1, 1994.
Eric J. Rossin and Chris Heegard
``On the Symmetries and Structure of Trellis Codes,''
1994 IEEE Information Theory Symposium,
Trondheim, NORWAY, June 27 - July 1, 1994.
Chris Heegard, Eric J. Rossin and Nagabhushana T. Sindhushay,
``Trellis Group Codes for the Gaussian Channel,''
1993 IEEE Information Theory Workshop on
Coding, System Theory and Symbolic Dynamics
Mansfield, Massachusetts, October 18-20, 1993.
Nagabhushana T. Sindhushay and Chris Heegard
``Symbolic Dynamics Groups and Generators,''
1993 IEEE Information Theory Workshop,
Mt. Fuji, Japan, June, 1993.
Keith Saints and Chris Heegard
``Cascaded Reed-Solomon Codes and Gröbner Bases,''
1993 IEEE Information Theory Workshop,
Mt. Fuji, Japan, June, 1993.
Eric J. Rossin and Chris Heegard,
``Rotationally Invariant Trellis Codes for QAM,''
1993 IEEE Information Theory Symposium,
San Antonio Texas, January, 1993.
Talal Shamoon and Chris Heegard,
``Lossless Compression Algorithms for
High Fidelity Audio Compression,''
1993 IEEE Information Theory Symposium,
San Antonio Texas, January, 1993.
Keith Saints and Chris Heegard,
``Algebraic Structure and Decoding of Two - Dimensional
Cascade Codes,''
1993 IEEE Information Theory Symposium,
San Antonio Texas, January, 1993.
Mignon Belongie and Chris Heegard,
``Runlength Limited Trellis Codes for
Partial Response Channels,''
1993 IEEE Information Theory Symposium,
San Antonio Texas, January, 1993.
Chris Heegard,
``Isometries of Trellis Codes via Symbolic Dynamics over Groups,''
MSRI Symbolic Dynamics Conference Program,
Berkeley, November 2-6, 1992.
Eric Rossin and Chris Heegard,
``Trellis Codes, Symbolic Dynamics, and Isometries,''
Joint DIMACS / IEEE Workshop on Coding and Quantization,
Rutgers University, October 19-21, 1992.
Chris Heegard, Mignon Belongie, Nagabhushana Sindhushay,
``Coding with Variable Length Graphs,''
1992 IEEE Information Theory Workshop,
Salvador, Brazil, June, 1992.
Mignon Belongie and Chris Heegard,
``Variable Length Trellis Decoding,''
1991 IEEE Information Theory Symposium,
Budapest, Hungary, June, 1991.
Chris Heegard and Mignon Belongie,
``Trellis Codes and Sequence Estimation for Recording Channels,''
1990 IEEE Information Theory Workshop,
Eigenhoven, Netherlands, June, 1990.
Mignon Belongie and Chris Heegard,
``Performance of Trellis Coded Run-Length Codes,''
1990 IEEE Information Theory Symposium,
San Diego, California, January 14-19, 1990.
Rajeev Krishnamoorthy and Chris Heegard,
``The Effect of Coding on the Reliability of Computer Memories,''
1990 IEEE Information Theory Symposium,
San Diego, California, January 14-19, 1990.
Kenneth Kerpez, Ayis Gallopoulos and Chris Heegard,
``Maximum Entropy, Charge Constrained, Run-length Codes,''
1990 IEEE Information Theory Symposium,
San Diego, California, January 14-19, 1990.
Rajeev Krishnamoorthy and Chris Heegard,
``Reliability of Computer Memory,''
1989 IEEE/CAM Information Theory Workshop,
Cornell University, Ithaca, New York, June 25-29, 1989.
Mignon Belongie and Chris Heegard,
``Trellis Constrained, Run-Length Codes,''
1989 IEEE/CAM Information Theory Workshop,
Cornell University, Ithaca, New York, June 25-29, 1989.
Chris Heegard and Rajeev Krishnamoorthy,
``Limits on Coding for Computer Memory,''
Workshop on Information Theory,
Mathematisches Forschungsinstitut Oberwolfach,
Oberwolfach, Germany, May, 1989.
Chris Heegard and Mignon Belongie,
``Trellis Constrained, Run-Length Codes,''
IEEE Communication Theory Workshop,
Hawkes Kaye, Florida, April 10-12, 1989.
Chris Heegard, Brian Marcus and Paul Siegel,
``Variable Length State Splitting with Applications to Average
Run-length Constrained (ARC) Codes,''
IEEE International Symposium on Information Theory,
Kobe, Japan, June, 1988.
Chris Heegard,
``Trellis Coded Run-Length Codes,''
1987 Workshop on Error - Correcting Codes,
Almaden Research Center, IBM, San Jose CA., September 1987.
Chris Heegard,
``Combined Trellis and Run-Length Coding,''
International Symposium on Information and Coding Theory,
Campinas, SP, Brazil, July 27-29, 1987.
Chris Heegard,
``Spectral Properties of Run-Length Limited
and Charge Constrained Modulation Codes,''
IEEE Communication Theory Workshop,
Howie-In-The-Hills, Florida, April 27-29, 1987.
Chris Heegard,
``Properties of Constrained Modulation Codes,''
National Radio Science meeting,
Boulder Colorado, January 12-15, 1987.
Thomas Fuja, Chris Heegard and Mario Blaum,
``Cross Parity Check Convolutional Codes for Magnetic Tape,''
IEEE International Symposium on Information Theory,
University of Michigan, Ann Arbor, October 6-9, 1986.
Chris Heegard, A. Robert Calderbank and Ting-Ann Lee,
``Binary Convolutional Codes with Application to Magnetic Recording,''
IEEE International Symposium on Information Theory,
University of Michigan, Ann Arbor, October 6-9, 1986.
Thomas Fuja, Chris Heegard and Mario Blaum,
``Cross Parity Check Codes for Magnetic Tape,''
1986 Workshop on Error-Correcting Codes,
Almaden Research Center, IBM, San Jose CA., August 1986.
Chris Heegard, Paul Siegal and Panagiotis Gallopoulos,
``On the Spectrum of (d, k) Codes,''
Workshop on Information Theory,
Mathematisches Forschungsinstitut Oberwolfach,
Oberwolfach, Germany, May 11-17, 1986.
Howard L. Dyckman and Chris Heegard,
``On the Capacity of Gaussian Channels with Intersymbol
Interference and a Cardinality Constraint on the Input,''
IEEE International Symposium on Information Theory,
Brighton, England, June 23-28, 1985.
Thomas Fuja, Chris Heegard and Rodney Goodman,
``Some Linear Sum Codes for Random Access Memories,''
IEEE International Symposium on Information Theory,
Brighton, England, June 23-28, 1985.
A. Robert Calderbank, Chris Heegard and Lawrence H. Ozarow,
``A New Approach to Coding for High Density Magnetic Recording,''
IEEE International Symposium on Information Theory,
Brighton, England, June 23-28, 1985.
Ting-Ann Lee and Chris Heegard,
``Binary Convolutional Codes for Partial Response Channels,''
Fourth Caribbean Conference on Combinatorics and Computing,
Puerto Rico, April 1-5, 1985.
Chris Heegard and Thomas Fuja,
``Redundancy in the Design of Semiconductor Memories,''
1984 IEEE Information Theory Workshop,
Caesarea Israel, July 2-6, 1984.
Chris Heegard and Toby Berger,
``Rate-Distortion when Side Information May Be Absent,''
IEEE International Symposium on Information Theory,
St. Jovite, Quebec, Canada, September 25-29, 1983.
Chris Heegard,
``Algebraic Codes for Optical Data Disks,''
IEEE International Symposium on Information Theory,
St. Jovite, Quebec, Canada, September 25-29, 1983.
Chris Heegard,
``Linear Block Codes for Computer Memory with Defects,''
IEEE International Symposium on Information Theory,
Les Arcs, France, June 1982.
Chris Heegard and Abbas El Gamal,
``On the Capacity of Computer Memory with Defects,''
IEEE International Symposium on Information Theory,
Santa Monica, California, February 1981.