Publications of Chi-chao Chao

Journal Papers

C.-C. Chao, R. J. McEliece, L. Swanson, and E. R. Rodemich, "Performance of binary block codes at low signal-to-noise ratios," IEEE Transactions on Information Theory, vol. 38, pp. 1677-1687, Nov. 1992.
M.-C. Chiu and C.-C. Chao, "Performance of joint equalization and trellis-coded modulation on multipath fading channels," IEEE Transactions on Communications, vol. 43, pp. 1230-1234, Feb./Mar./Apr. 1995.
C.-C. Chao, M.-C. Chiu, and C. Schlegel, "Comments on 'a lower bound on the minimum Euclidean distance of trellis-coded modulation schemes,' " IEEE Transactions on Information Theory, vol. 41, pp. 1531-1535, Sep. 1995.
T.-C. Wu, K.-C. Chen, and C.-C. Chao, "Performance of direct-sequence and slow frequency hopped spread spectrum for wireless local communications," Journal of the Chinese Institute of Electrical Engineering, vol. 2, pp. 285-298, Nov. 1995.
C.-C. Chao and M.-C. Chiu, "Average distance structures of trellis codes," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E79-A, pp. 585-591, Apr. 1996.
C.-C. Chao and Y.-L. Yao, "Hidden Markov models for the burst error statistics of Viterbi decoding," IEEE Transactions on Communications, vol. 44, pp. 1620-1622, Dec. 1996.
M.-C. Chiu and C.-C. Chao, "Analysis of LMS-adaptive MLSE equalization on multipath fading channels," IEEE Transactions on Communications, vol. 44, pp. 1684-1692, Dec. 1996.
J. Cheng and C.-C. Chao, "On generalized Hamming weights of binary primitive BCH codes with minimum distance one less than a power of two," IEEE Transactions on Information Theory, vol. 43, pp. 294-299, Jan. 1997.
T.-C. Wu, C.-C. Chao, and K.-C. Chen, "Capacity of synchronous coded DS SFH and FFH spread spectrum multiple access for wireless local communications," IEEE Transactions on Communications, vol. 45, pp. 200-212, Feb. 1997.
C.-C. Chao and W. Chen, "Connection admission control for mobile multiple-class personal communications networks," IEEE Journal on Selected Areas in Communications, vol. 15, pp. 1618-1626, Oct. 1997.
M.-C. Chiu and C.-C. Chao, "Low-decoding-complexity TDM coded modulation with unequal error protection," IEE Proceedings-Communications, vol. 144, pp. 372-380, Dec. 1997.
C.-H. Wang and C.-C. Chao, "Combined speech and channel coding for wireless communications," Wireless Personal Communications, vol. 17, pp. 21-43, Apr. 2001.
C.-H. Wang and C.-C. Chao, "Path-compatible pruned convolutional (PCPC) codes," IEEE Transactions on Communications, vol. 50, pp. 213-224, Feb. 2002.
C.-H. Wang, W.-T. Wang, and C.-C. Chao, "A unified structure of trellis-based soft-output decoding algorithms for turbo codes," IEEE Transactions on Communications, vol. 52, pp. 1355-1366, Aug. 2004.
W.-D. Wu, C.-C. Lee, C.-H. Wang, and C.-C. Chao, "Signal-to-interference- plus-noise ratio analysis for direct-sequence ultra-wideband systems in generalized Saleh-Valenzuela channels," IEEE Journal of Selected Topics in Signal Processing, vol. 1, pp. 483-497, Oct. 2007.
C.-Y. Chen, C.-H. Wang, and C.-C. Chao, "Complete complementary codes and generalized Reed-Muller codes," IEEE Communications Letters, vol. 12, pp. 849-851, Nov. 2008.
K.-Y. Sung and C.-C. Chao, "Estimation and compensation of I/Q imbalance in OFDM direct-conversion receivers," IEEE Journal of Selected Topics in Signal Processing, vol. 3, pp. 438-453, Jun. 2009.
C.-H. Wang, M.-C. Chiu, and C.-C. Chao, "On unequal error protection of convolutional codes from an algebraic perspective," IEEE Transactions on Information Theory, vol. 56, pp. 296-315, Jan. 2010.
C.-Y. Chen, Q. Huang, C.-C. Chao, and S. Lin, "Two low-complexity reliability-based message-passing algorithms for decoding non-binary LDPC codes," IEEE Transactions on Communications, vol. 58, pp. 3140-3147, Nov. 2010.
K.-Y. Sung, Y.-W. P. Hong, and C.-C. Chao, "Resource allocation and partner selection for cooperative multicarrier systems," IEEE Transactions on Vehicular Technology, vol. 60, pp. 3228-3240, Sep. 2011.
K.-Y. Sung, Y.-W. P. Hong, and C.-C. Chao, "Feedback-aided pilot placement and subcarrier pairing for AF OFDM relay channels," IEEE Transactions on Vehicular Technology, vol. 62, pp. 704-720, Feb. 2013.
C.-C. Huang, C.-J. Wu, C.-Y. Chen, and C.-C. Chao, "Parallel symbol-flipping decoding for non-binary LDPC codes," IEEE Communications Letters, vol. 17, pp. 1228-1231, Jun. 2013.
C.-J. Wu, C.-H. Wang, and C.-C. Chao, "UEP constructions of quasi-cyclic low-density parity-check codes via masking," IEEE Transactions on Information Theory, vol. 63, pp. 6271-6294, Oct. 2017.
T.-H. Tsai, M.-C. Chiu, and C.-C. Chao, "Sub-system SVD hybrid beamforming design for millimeter wave multi-carrier systems," IEEE Transactions on Wireless Communications, vol. 18, pp. 518-531, Jan. 2019.

Book Chapter

W.-S. Wu, C.-H. Wang, M.-C. Chiu, and C.-C. Chao, "Stability analysis of the turbo decoding algorithm using Max-Log-MAP," in Information, Coding and Mathematics. P. Farrell, H. van Tilborg, and M. Blaum, eds. Boston: Kluwer, 2002, pp. 257-278.

Conference Papers

C.-C. Chao and R. J. McEliece, "Orthogonal codes and channels with noise scaling," in Proc. 1988 IEEE International Symposium on Information Theory, Kobe, Japan, Jun. 1988, pp. 18-19.
C.-C. Chao and R. J. McEliece, "Average distance structures of random convolutional codes," in Proc. 1988 IEEE International Symposium on Information Theory, Kobe, Japan, Jun. 1988, p.92.
L. Swanson, R. J. McEliece, and C.-C. Chao, "Behavior of codes at very low signal-to-noise ratio,'" in Proc. 1988 IEEE International Symposium on Information Theory, Kobe, Japan, Jun. 1988, p. 233.
C.-C. Chao and R. J. McEliece, "On the path weight enumerators of convolutional codes," in Proc. Twenty-Sixth Annual Allerton Conference on Communication, Control, and Computing, Monticello, IL, USA, Sep. 1988, pp. 1049-1058.
C.-C. Chao and R. J. McEliece, "More on the behavior of binary block codes at low signal-to-noise ratios," in Proc. 1990 IEEE International Symposium on Information Theory, San Diego, CA, USA, Jan. 1990, p.126.
C.-C. Chao and R. J. McEliece, "A Markov chain model for the burst error statistics of Viterbi decoding," in Proc. 1990 International Symposium on Information Theory and Its Applications, Waikiki, HI, USA, Nov. 1990, pp. 391-394.
C.-C. Chao, "Average distance structures of trellis codes," in Proc. 1991 IEEE International Symposium on Information Theory, Budapest, Hungary, Jun. 1991, p. 151.
C.-C. Chao, D.-G. Wei, and C.-C. Lu, "Performance of modulation codes over fading channels," in Proc. 1991 Symposium on Information Theory and Its Applications, Ibusuki, Japan, Dec. 1991, pp. 381-384.
M.-C. Chiu and C.-C. Chao, "Performance of combined sequence estimation and coded modulation on multipath fading channels," in Proc. 1992 National Symposium on Telecommunications, Chungli, Taiwan, ROC, Dec. 1992, pp. 382-387.
T.-C. Wu, K.-C. Chen, and C.-C. Chao, "Error probability comparison between direct sequence and slow frequency hopped spread spectrum transmission in indoor multipath fading channels," in Proc. 1992 National Symposium on Telecommunications, Chungli, Taiwan, ROC, Dec. 1992, pp. 5-10.
M.-C. Chiu and C.-C. Chao, "Performance of joint equalization and trellis-coded modulation on multipath fading channels," in Proc. 1993 IEEE International Symposium on Information Theory, San Antonio, TX, USA, Jan. 1993, p. 346.
C.-C. Chao and Y.-L. Yao, "Hidden Markov models for the burst error statistics of Viterbi decoding," in Proc. 1993 IEEE International Conference on Communications, Geneva, Switzerland, May 1993, pp. 751-755.
T.-C. Wu, K.-C. Chen, and C.-C. Chao, "Capacity of synchronous DS, SFH, and FFH SSMA for wireless local communications," in Proc. Fourth International Symposium on Personal, Indoor and Mobile Radio Communications, Yokohama, Japan, Sep. 1993, pp. 508-512.
T.-C. Wu, K.-C. Chen, and C.-C. Chao, "Performance of DS and SFH systems with diversity reception and BCH FEC over indoor multipath fading channels," in Proc. 1993 International Symposium on Communications, Hsinchu, Taiwan, ROC, Dec. 1993, pp. 12-90-12-97.
M.-C. Chiu and C.-C. Chao, "Performance of adaptive MLSE equalization on multipath fading channels with imperfect channel estimates," in Proc. 1994 IEEE International Symposium on Information Theory, Trondheim, Norway, Jun. 1994, p. 357.
T.-C. Wu, C.-C. Chao, and K.-C. Chen, "Capacity of synchronous coded DS- SFH- and FFH-SSMA for wireless local communications," in Proc. 1995 IEEE International Conference on Communications, Seattle, WA, USA, Jun. 1995, pp. 1065-1069.
M.-C. Chiu and C.-C. Chao, "A new construction of nonlinear unequal error protection codes," in Proc. 1995 IEEE International Symposium on Information Theory, Whistler, BC, Canada, Sep. 1995, p. 496.
T.-C. Wu, H.-S. Yuan, K.-C. Chen, C.-C. Chao, and M.-P. Shih, "On the coexistence of N-CDMA and analog FM/FDMA cellular telephone systems in adjacent spectrum," in Proc. Seventh IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Taipei, Taiwan, ROC, Oct. 1996, pp. 828-832.
C.-S. Chang, C.-C. Chao, and J. A. Thomas, "Fundamental limits of traffic regulation and their connections to source coding," in Proc. 35th IEEE Conference on Decision and Control, Kobe, Japan, Dec. 1996, pp. 791-196.
C.-C. Chao, W. Chen, and C. Jackson, "Connection admission control for mobile multiple-class personal communications networks," in Proc. 1997 IEEE International Conference on Communications, Montreal, Quebec, Canada, Jun. 1997, pp. 391-395.
M.-C. Chiu, C.-C. Chao, and C.-H. Wang, "Convolutional codes for unequal error protection," in Proc. 1997 IEEE International Symposium on Information Theory, Ulm, Germany, Jun. 1997, p. 290.
C.-H. Wang and C.-C. Chao, "Path-compatible pruned convolutional (PCPC) codes: A new scheme for unequal error protection," in Proc. 1998 IEEE International Symposium on Information Theory, Cambridge, MA, USA, Aug. 1998, p. 306.
C.-H. Wang and C.-C. Chao, "Modified SOVA decoding for turbo codes," in Proc. 1998 International Symposium on Information Theory and Its Applications, Mexico City, Mexico, Oct. 1998, pp. 643-646.
C.-H. Wang and C.-C. Chao, "Combined speech and channel coding for wireless communications," in Proc. 1999 International Symposium on Communications, Kaohsiung, Taiwan, ROC, Nov. 1999, pp. 77-81.
C.-H. Wang and C.-C. Chao, "Further results on unequal error protection of convolutional codes," in Proc. 2000 IEEE International Symposium on Information Theory, Sorrento, Italy, Jun. 2000, p. 35.
H.-H. He, C.-S. Maa, and C.-C. Chao, "Efficient multiplications based on tower fields," in Proc. 2000 International Symposium on Information Theory and Its Applications, Honolulu, HI, USA, Nov. 2000, pp. 457-460.
C.-H. Wang, W.-T. Wang, and C.-C. Chao, "A unified structure of the trellis-based soft-output decoding algorithms for turbo codes," in Proc. 2001 IEEE International Symposium on Information Theory, Washington, DC, USA, Jun. 2001, p. 319.
T.-C. Wu, C.-C. Chao, and K.-C. Chen, "Multiuser detection for frequency-hopped spread spectrum systems with BFSK modulation," in Proc. 2001 IEEE Vehicular Technology Conference, Atlantic City, NJ, USA, Oct. 2001, pp. 323-327.
W.-S. Wu, C.-H. Wang, M.-C. Chiu, and C.-C. Chao, "Stability analysis of the turbo decoding algorithm using Max-Log-MAP," in Proc. 2002 IEEE International Symposium on Information Theory, Lausanne, Switzerland, Jun. 2002, p. 141.
C.-Y. Chen, C.-H. Wang, and C.-C. Chao, "Convolutional codes for peak-to-average power ratio reduction in OFDM," in Proc. 2003 IEEE International Symposium on Information Theory, Yokohama, Japan, Jun. 2003, p. 5.
W.-D. Wu, C.-H. Wang, and C.-C. Chao, "Effects of hopping codes in TH-SS UWB signals," in Proc. 2003 IEEE 58th Vehicular Technology Conference, Orlando, FL, USA, Oct. 2003, pp. 1308-1312.
M.-C. Chiu, W.-D. Wu, and C.-C. Chao, "Frequency-diversity coded OFDM for ultra-wideband systems with under-sampling-rate receivers," in Proc. 2005 IEEE International Conference on Communications, Seoul, Korea, May 2005, pp. 2852-2856.
K.-Y. Sung and C.-C. Chao, "Estimation and compensation of I/Q imbalance in OFDM systems," in Proc. 2005 IEEE 61^st Vehicular Technology Conference, Stockholm, Sweden, May 2005, pp. 1063-1067.
W.-T. Chan, W.-D. Wu, C.-H. Wang, M.-C. Chiu, and C.-C. Chao, "Application of space-time codes to OFDM UWB systems with under-sampled receivers," in Proc. 2005 IEEE 61^st Vehicular Technology Conference, Stockholm, Sweden, May 2005, pp. 1191-1195.
C.-Y. Chen, C.-H. Wang, and C.-C. Chao, "Complementary sets and Reed-Muller codes for peak-to-average power ratio reduction in OFDM," in Proc. 16th International Symposium on Applied Algebra, Algebraic Algorithms and Error-Correcting Codes, LNCS 3857, Las Vegas, NV, USA, Feb. 2006, pp. 317-327.
W.-D. Wu, C.-H. Wang, M.-C. Chiu, and C.-C. Chao, "UWB communications with under-sampled receivers," in Proc. 2006 IEEE International Symposium on Information Theory, Seattle, WA, USA, Jul. 2006, pp. 2588-2592.
Y.-W. Ting, W.-D. Wu, and C.-C. Chao, "Expanded super-orthogonal space-time block codes with systematic construction," in Proc. 2006 National Symposium on Telecommunications, Kaohsiung, Taiwan, ROC, Dec. 2006.
C.-C. Lee, W.-D. Wu, and C.-C. Chao, "Signal-to-interference-plus-noise ratio analysis for direct-sequence ultra-wideband systems," in Proc. 2007 IEEE Wireless Communications and Networking Conference, Hong Kong, Mar. 2007, pp. 1763-1767.
C.-Y. Chen, Y.-J. Min, K.-Y. Lu, and C.-C. Chao, "Cell search for cell-based OFDM systems using quasi complete complementary codes," in Proc. 2008 IEEE International Conference on Communications, Beijing, China, May 2008, pp. 4840-4844.
C.-J. Wu, Y.-C. Chou, C.-H. Wang, and C.-C. Chao, "New construction of LDPC convolutional codes," in Proc. 2008 IEEE International Symposium on Information Theory, Toronto, ON, Canada, Jul. 2008, pp. 1040-1044.
C.-H. Wang and C.-C. Chao, "Canonical convolutional encoders for unequal error protection," in Proc. 2008 IEEE International Symposium on Information Theory, Toronto, ON, Canada, Jul. 2008, pp. 2232-2236.
J.-Y. Chang, W.-D. Wu, and C.-C. Chao, "An analytical framework for ultra-wideband communications over IEEE 802.15.4a channels," in Proc. 2008 IEEE International Symposium on Information Theory, Toronto, ON, Canada, Jul. 2008, pp. 2757-2761.
W.-D. Wu, C.-H. Wang, C.-C. Chao, and K. Witrisal, "On parameter estimation for ultra-wideband channels with clustering phenomenon," in Proc. 2008 IEEE 68^th Vehicular Technology Conference, Calgary, AB, Canada, Sep. 2008, pp. 1-5.
C.-H. Hsieh, W.-D. Wu, and C.-C. Chao, "Optimal channel energy capture for ultra-wideband transmitted reference systems in clustered channels," in Proc. 2010 IEEE Wireless Communications and Networking Conference, Sydney, Australia, Apr. 2010, pp. 1-6.
C.-J. Wu, C.-H. Wang, and C.-C. Chao, "A new construction of UEP QC-LDPC codes," in Proc. 2010 IEEE International Symposium on Information Theory, Austin, TX, USA, Jun. 2010, pp. 849-853.
C.-Y. Chen, Q. Huang, C.-C. Chao and S. Lin, "A message-passing decoding algorithm for q-ary LDPC codes with low-complexity," in Proc. 2010 International Symposium on Information Theory and Its Applications, Taichung, Taiwan, Oct. 2010, pp. 501-506.
C.-J. Wu, C.-H. Wang, and C.-C. Chao, "A new construction of irregular LDPC convolutional codes with cycle removal," in Proc. 2010 International Symposium on Information Theory and Its Applications, Taichung, Taiwan, Oct. 2010, pp. 507-512.
K.-Y. Sung, Y.-W. P. Hong, and C.-C. Chao, "Subcarrier allocation and partner selection algorithms for cooperative multicarrier systems," in Proc. 2010 International Symposium on Information Theory and Its Applications, Taichung, Taiwan, Oct. 2010, pp. 963-968.
K.-Y. Sung, Y.-W. P. Hong, and C.-C. Chao, "Feedback-aided pilot placement for amplify-and-forward OFDM relay links," in Proc. 2010 IEEE 11^th International Symposium on Spread Spectrum Techniques and Applications, Taichung, Taiwan, Oct. 2010, pp. 17-22.
Y.-S. Tang, C.-Y. Chen, and C.-C. Chao, "A novel construction of zero correlation zone sequences based on Boolean functions," in Proc. 2010 IEEE 11^th International Symposium on Spread Spectrum Techniques and Applications, Taichung, Taiwan, Oct. 2010, pp. 198-203.
K.-Y. Sung, Y.-W. P. Hong, and C.-C. Chao, "Feedback-aided pilot placement for OFDM relay links with subcarrier pairing," in Proc. 2011 IEEE International Conference on Communications, Kyoto, Japan, Jun. 2011, pp. 1-5.
H-Y. Hsu, T-H. Tsai, W.-D. Wei, and C.-C. Chao, "Performance analysis of OFDM systems over 60 GHz indoor channels," in Proc. 2012 IEEE 76^th Vehicular Technology Conference, Quebec City, QC, Canada, Sep. 2012, pp. 1-5.
C.-J. Wu, C.-H. Wang, and C.-C. Chao, "Unequal error protection QC-LDPC codes via masking," in Proc. 2012 International Symposium on Information Theory and Its Applications, Honolulu, HI, USA, Oct. 2012, pp. 546-550.
T.-H. Tsai and C.-C. Chao, "Spatial beamforming codebook design for indoor multi-user mmWave communications," in Proc. 13th IEEE VTS Asia Pacific Wireless Communications Symposium, Tokyo, Japan, Aug. 2016, pp. 123-127.
C.-J. Wu, C.-H. Wang, and C.-C. Chao, "New constructions of variable-rate QC-LDPC codes by adding column-blocks or removing row-blocks," in Proc. 2016 International Symposium on Information Theory and Its Applications, Monterey, CA, USA, Oct. 2016, pp. 394-398.
T.-H. Tsai and C.-C. Chao, "Hybrid beamforming for indoor mmWave multi-carrier systems under sub-system SVD," in Proc. 28th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Montreal, Canada, Oct. 2017, pp. 1-6.
P.-C. Yang, C.-H. Wang, and C.-C. Chao, "Rank analysis of parity-check matrices for quasi-cyclic LDPC codes," in Proc. 2018 IEEE International Symposium on Information Theory, Vail, CO, USA, Jun. 2018, pp. 491-495.
J.-J. Wu, C.-H. Wang, and C.-C. Chao, "Decoding scheduling for unequal error protection quasi-cyclic low-density parity-check codes." in Proc. 2019 Ninth International Workshop on Signal Design and its Applications in Communications, Dongguan China, Oct. 2019, pp. 1-5.
Y.-H. Chen, Y.-T. Liu, C.-H. Wang, and C.-C. Chao, “Analysis of UEP QC-LDPC codes using density evolution,” in Proc. 2020 International Symposium on Information Theory and Its Applications, Kapolei, HI, USA (Virtual Symposium), Oct. 2020, pp. 230-234.
C.-Y. Kao, C.-H. Wang, and C.-C. Chao, “Improved belief propagation decoders for polar codes,” in Proc. 2023 IEEE International Symposium on Information Theory, Taipei, Taiwan, Jun. 2023, pp. 1705-1710.
C.-H. Lee, C.-H. Wang, and C.-C. Chao, “Construction of polar codes for belief propagation decoding,” in Proc. 46th Symposium on Information Theory and its Applications, Yamaguchi, Japan, Nov. 2023, pp. 466-471.

Patents

邱茂清、趙啟超、張朝明、鄭泰源、陳宏坤，「用於復原通訊系統內之數位資料內容之方法及其裝置」，中華民國專利發明第206955號，2004年6月11日。
T.-H. Chen, C.-C. Chao, M.-C. Chiu, and C.-M. Chang, "Method and system for decoding block codes by calculating a path metric according to a decision feedback sequence estimation algorithm," U.S. Patent 7 017 014, Mar. 21, 2006.
M.-C. Chiu, C.-C. Chao, C.-M. Chang, T.-Y. Cheng, and H.-K. Chen, "Method for recovering a digital data content in a communication system and apparatus for performing the same," U.S. Patent 7 254 185, Aug. 7, 2007.
M.-C. Chiu and C.-C. Chao, "Apparatus and method for calculating bit metrics in data receivers," U.S. Patent 7 269 227, Sep. 11, 2007.
C.-C. Chao and M.-C. Chiu, "Method and system for decoding block codes," U.S. Patent 7 298 798, Nov. 20, 2007.