Rolf Johannesson

Search results

• 2014

  A unified approach to optimization of LDPC codes for various communication scenarious

  Bocharova, I., Kudryashov, B. & Johannesson, R., 2014.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• LDPC Convolutional Codes versus QC LDPC Block Codes in Communication Standard Scenarios

  Bocharova, I., Kudryashov, B. & Johannesson, R., 2014.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 2011

  Another look at the exact bit error probability for Viterbi decoding of convolutional codes

  Bocharova, I., Hug, F., Johannesson, R. & Kudryashov, B., 2011.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

  File

  • Convolutional Code 100%
  • viterbi decoding 100%
  • Bit Error 100%
  • Generator Matrix 42%
  • Binary Symmetric Channel 28%
  130 Downloads (Pure)

• LDPC codes with large girth based on voltage graphs

  Bocharova, I., Hug, F., Johannesson, R. & Kudryashov, B., 2011.

  Research output: Contribution to conference › Paper, not in proceeding

• On the exact bit error probability for Viterbi decoding of convolutional codes

  Bocharova, I., Hug, F., Johannesson, R. & Kudryashov, B., 2011.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

  • Convolutional Code 100%
  • viterbi decoding 100%
  • Bit Error 100%
  • Probability Theory 100%
  • Generator Matrix 33%
• 2009

  A lower bound on the minimum distance of chained Gallager codes

  Zyablov, V., Hug, F. & Johannesson, R., 2009.

  Research output: Contribution to conference › Paper, not in proceeding

  • Bounds 100%

• Chained Gallager codes

  Zyablov, V., Hug, F. & Johannesson, R., 2009.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

  File

  • Bounds 100%
  119 Downloads (Pure)
• 2008

  On the Erasure-Correcting Capabilities of Low-Complexity Decoded LDPC Codes with Constituent Hamming Codes

  Zyablov, V., Loncar, M., Johannesson, R. & Rybin, P., 2008.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

  • Low Density 100%
  • Parity Check Code 100%
  • low-density parity-check code 100%
  • Iteration 25%
  • Channels 25%

• On the Error-Correcting Capabilities of Low-Complexity Decoded LDPC Codes with Constituent Hamming Codes

  Zyablov, V., Loncar, M., Johannesson, R. & Rybin, P., 2008.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

  • Codes 100%
  • Error Correcting Capability 100%
  • Error 33%
  • Performance 16%
  • Hard Decision 16%

• On the Expanding Properties of Gallager's LDPC Matrices

  Zyablov, V., Loncar, M. & Johannesson, R., 2008.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

  • Matrix (Mathematics) 100%
  • Bipartite Graph 100%
  • Expansion 100%
  • Coefficient 100%
  • Adjacency Matrix 50%

• Woven graph codes over hypergraphs

  Bocharova, I., Johannesson, R., Kudryashov, B. & Zyablov, V. V., 2008.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 2007

  A comparison of some trellis- and tree-based SISO algorithms for decoding and equalization

  Loncar, M., Johannesson, R., Bocharova, I. & Kudryashov, B., 2007, p. 1696-1700.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Asymptotically good woven codes with fixed constituent convolutional codes

  Bocharova, I., Kudryashov, B., Johannesson, R. & Zyablov, V., 2007.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 2006

  Interative BEAST-decoding of product codes

  Loncar, M., Johannesson, R., Bocharova, I. & Kudryashov, B., 2006.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Stumbling through a tree

  Johannesson, R., 2006.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Trellis complexity for short linear codes

  Bocharova, I., Kudryashov, B. & Johannesson, R., 2006.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 2004

  An atypical approach to carrier modulation

  Massey, J. L., Massey, P. C. & Johannesson, R., 2004.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• On unequal error protection for code symbols via active distances

  Johannesson, R., Pavlushkov, V. & Zyablov, V. V., 2004.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 2003

  A new look at Shannon bandwidth

  Massey, J. L. & Johannesson, R., 2003.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• On the error detecting and erasure correcting capabilities of convolutional codes

  Johannesson, R., Pavlushkov, V. & Zyablov, V. V., 2003.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 2002

  On tennis trellises, state-transition diagrams, Carl Nielsen and Jim Massey

  Johannesson, R., 2002.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Trellis representations for quasi-cyclic codes

  Bocharova, I., Handlery, M., Johannesson, R. & Kudryashov, B., 2002.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 2001

  Information processing in soft-output decoding

  Huettinger, S., Huber, J., Johannesson, R. & Fischer, R., 2001.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Prowling with a BEAST

  Bocharova, I., Handlery, M., Johannesson, R. & Kudryashov, B., 2001.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 2000

  On woven convolutional codes

  Höst, S., Johannesson, R. & Zyablov, V. V., 2000.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Systematic bits are better

  Johannesson, R., Massey, J. L. & Ståhl, P., 2000.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Systematic bits are better also for tailbiting codes

  Ståhl, P. & Johannesson, R., 2000.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Systematic bits are better and no buts about it

  Johannesson, R., Massey, J. L. & Ståhl, P., 2000.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Tailbiting: a bridge between block and convolutional codes

  Johannesson, R., 2000.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Woven convolutional codes with tailbiting

  Handlery, M., Johannesson, R. & Zyablov, V. V., 2000.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 1999

  Woven convolutional codes: encoder properties and error exponents

  Johannesson, R., 1999.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 1998

  A condition for feedback tailbiting convolutional encoders and a short list of allowed feedback polynomials

  Johannesson, R. & Anderson, J. B., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Cascaded convolutional codes

  Höst, S., Johannesson, R., Sidorenko, V. R., Zigangirov, K. & Zyablov, V. V., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Convolutional codes, encoders, and syndrome formers: old and new

  Johannesson, R., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Decoding of woven convolutional codes with outer warp - preliminary results

  Höst, S., Johannesson, R. & Zyablov, V. V., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Generator matrices of binary woven convolutional codes

  Höst, S., Johannesson, R., Zyablov, V. V. & Skopintsev, O., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• On the error exponent for woven convolutional codes with outer warp

  Zyablov, V. V., Shavgulidze, S., Skopintsev, O., Höst, S. & Johannesson, R., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Recent results on tailbiting encoders

  Ståhl, P., Johannesson, R. & Anderson, J. B., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Rudified convolutional encoders

  Johannesson, R., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Woven convolutional codes and their generator matrices

  Höst, S., Johannesson, R. & Zyablov, V. V., 1998.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 1997

  A first encounter with binary woven convolutional codes

  Höst, S., Johannesson, R. & Zyablov, V. V., 1997.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 1996

  Active distances for convolutional codes

  Höst, S., Johannesson, R., Zigangirov, K. & Zyablov, V. V., 1996.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Convolutional codes over rings

  Wittenmark, E., Johannesson, R. & Wan, Z.-X., 1996.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Minimal and canonical rational generator matrices for convolutional codes

  Forney, Jr., G. D., Johannesson, R. & Wan, Z.-X., 1996.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Two 16-state, rate R=2/4 trellis codes whose free distance meet the Heller bound

  Johannesson, R. & Wittenmark, E., 1996.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 1995

  Bounds on the number of computations of sequential decoding for the Gilbert-Elliott channel

  Bratt, G., Johannesson, R. & Zigangirov, K., 1995.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• Lower bounds on the free distance for random concatenated convolutional codes

  Johannesson, R., Zigangirov, K. & Zyablov, V. V., 1995.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• On the construction of concatenated codes based on binary conventional convolutional codes

  Höst, S., Johannesson, R. & Zyablov, V. V., 1995.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review

• On the error probability for list decoding of convolutional codes

  Johannesson, R., 1995.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review
• 1994

  List decoding of convolutional codes - a Tutorial

  Johannesson, R., 1994.

  Research output: Contribution to conference › Paper, not in proceeding › peer-review