Francis Lu

Francis' Publications

Journal Papers:

1. 1. H. F. Lu and P. V. Kumar, "Rate-diversity tradeoff of space-time codes with fixed alphabet and optimal constructions for PSK modulation," IEEE Trans. Inform. Theory, vol. 49, no. 10, pp. 2747-2751, Oct. 2003
  2. H. F. Lu, Y. Wang, P. V. Kumar, and K. M. Chugg, "Remarks on space-time codes including a new lower bound and an improved code," IEEE Trans. Inform. Theory, vol. 49, no. 10, pp. 2752 - 2757, Oct. 2003.
  3. H. F. Lu, P. V. Kumar and H. Chung, "On orthogonal designs and space-time codes," IEEE Commun. Letters, vol. 8, no. 4, pp.220-222, Apr. 2004.
  4. H. F. Lu, P. V. Kumar, and E. H. Yang, "On the input-output weight enumerators of product accumulate codes," IEEE Commun. Letters, vol. 8, no. 8, pp. 520-522, Aug. 2004.
  5. H. F. Lu and P. V. Kumar, "A unified construction of space-time codes with optimal rate-diversity tradeoff," IEEE Trans. Inform. Theory, vol. 51, no. 5, pp. 1709-1730, May. 2005.
  6. H. F. Lu, "Space-time codes with AM-PSK signalings," IEEE Trans. Inform. Theory, vol. 51, no. 12, pp. 4355-4358, Dec. 2005.
  7. H. F. Lu, "On the conjectures of SU(3) and AB unitary space-time codes," IEEE Trans. Inform. Theory, vol. 52, no. 7, pp. 3319-3324, Jul. 2006.
  8. H. F. Lu, "On constructions of algebraic space-time codes with AM-PSK constellations satisfying rate-diversity tradeoff," IEEE Trans. Inform. Theory, vol. 52, no. 7, pp. 3198-3209, Jul. 2006.
  9. P. Elia, S. A. Pawar, K. Raj Kumar, P. V. Kumar, and H. F. Lu, "Explicit construction of space-time block codes achieving the diversity-multiplexing gain tradeoff," IEEE Trans. Inform. Theory, vol. 52, no. 9, pp. 3869-3884, Sep. 2006.
  10. H. F. Lu and M. C. Chiu, "Constructions of asymptotically optimal space-frequency codes for MIMO-OFDM systems," IEEE Trans. Inform. Theory, vol. 53, no. 5, pp. 1676-1688, May 2007.
  11. O. Moreno, R. Omrani, P. V. Kumar, and H. F. Lu, "A generalized Bose-Chowla family of optical orthogonal codes and Distinct Difference Sets," IEEE Trans. Inform. Theory, vol. 53, no. 5, pp. 1907-1910, May 2007.
  12. H. F. Lu, “Constructions of multi-block space-time coding schemes that achieve the diversity-multiplexing tradeoff,” IEEE Trans. Inform. Theory, vol. 54, no. 8, pp. 3790-3796, Aug. 2008.
  13. C. Hollanti, J. Lahtonen, and H. F. Lu, “Maximal orders in the design of dense space-time lattice codes,” IEEE Trans. Inform. Theory, vol. 54, no. 10, pp. 4493-4510, Oct. 2008.
  14. M. C. Chiu and H. F. Lu, “Accumulate codes based on 1+D convolutional outer codes,” IEEE Trans. Commun., vol. 57, no. 2, pp. 331-334, Feb. 2009.
  15. C. Hollanti and H. F. Lu, “Construction methods for asymmetric and multi-block space-time codes,” IEEE Trans. Inform. Theory, vol. 55, no. 2, pp. 1086-1103, Mar. 2009
  16. H. F. Lu, R. Vehkalahti, C. Hollanti, J. Lahtonen, Y. Hong, and E. Viterbo, “New space-time code constructions for two-user multiple access channels,” IEEE Journal of Selected Topics in Signal Processing, vol. 3, no. 6, pp. 939-957, Dec. 2009.
  17. H. F. Lu and C. Hollanti, “Optimal diversity-multiplexing tradeoff and code constructions of some constrained asymmetric MIMO systems,” IEEE Trans. Inform. Theory, vol. 56, no. 5, pp. 2121-2129, May. 2010
  18. H. F. Lu, “Constructions of DMT optimal vector codes for asynchronous cooperative networks using decode-and-forward protocols,” IEEE Trans. on Wireless Comm., vol. 9, no. 7, pp.2392-2400, Jul 2010.
  19. H. F. Lu, C. Hollanti, R. Vehkalahti, J. Lahtonen, “DMT optimal code constructions for multiple-access MIMO channel,” IEEE Trans. Inform. Theory, vol. 57, no. 6, pp. 3594-3617, Jun. 2011.
  20. H. F. Lu, “Remarks on diversity-multiplexing tradeoffs for multiple-access and point-to-point MIMO channels,” IEEE Trans. Inform. Theory, vol. 58, no. 2, pp. 858-863, Feb. 2012.
  21. T. W. Tang, M. K. Chen, and H. F. Lu, “Improving the DMT performance for MIMO communication with linear receivers,” IEEE Trans. Veh. Technol., vol. 62, no. 3, pp. 1189-1200, Mar. 2013.
  22. R. Vehkalahti, H. F. Lu, and L. Luzzi, “Inverse determinant sums and connections between fading channel information theory and algebra,” IEEE Trans. Inform. Theory, vol. 59, no, 9, pp. 6060-6082, Sep. 2013.
  23. T. Ernvall, J. Lahtonen, H. F. Lu, and R. Vehkalahti, “An error event sensitive trade-off between rate and coding gain in MIMO MAC,” IEEE Trans. Inform. Theory, vol. 61, no. 11, pp. 5931-5947, Nov. 2015.
  24. T. W. Tang, H. T. Tien, and H. F. Lu, “Selection and rate-adaptation schemes for MIMO multiple-access channels with low-rate channel feedback,” IEEE Trans. Inform. Theory, vol. 61, no. 11, pp. 5948-5975, Nov. 2015.
  25. H. F. Lu, P. Elia, and A. Singh, “Performance-Complexity Analysis for MAC ML-based Decoding with User Selection,” IEEE Trans. on Signal Processing, vol. 64, no. 7, pp. 1867-1880, Apr. 2016.
  26. H. F. Lu, A. Barreal, D. Karpuk, and C. Hollanti, “Efficiently sphere-decodable transmission schemes for multiple-access wireless networks,” EURASIP Journal on Advances in Signal Processing, 2016:56, pp. 1-19, May, 2016.
  27. H. F. Lu, “Optimal distributed codes for feedback-aided cooperative relay networks,” IEEE Trans. Inform. Theory, vol. 62, no, 7, pp. 4198-4211, Jul. 2016.
  28. C. Y. Lai, M. H. Hsieh, and H. F. Lu, “On the MacWilliams Identity for Classical and Quantum Convolutional Codes,” IEEE Trans. Commun., vol. 64, no. 8, pp. 3148-3159, Aug. 2016.
  29. J. Y. Huang and H. F. Lu, "Achieving large sum rate and good fairness in MISO broadcast communication," IEEE Trans. Veh. Technol., vol. 68, no. 6, pp. 5684-5695, Jun. 2019.
  30. H. F. Lu, "Optimal sum rate-fairness tradeoff for MIMO downlink communications employing successive zero forcing dirty paper coding," IEEE Commun. Letters, vol. 25, no. 3, pp. 783-787, Mar. 2021.
  31. H. F. Lu, "Achieving the sum rate capacity of MIMO downlink communications with better fairness," IEEE Access, vol. 9, pp. 161877-161889, Dec. 2021.
  32. H. F. Lu, “Improving the sum rate and fairness of MIMO downlink communications,” IEEE Trans. Veh. Technol., vol. 71, no. 8, pp. 9061-9066, Aug. 2022.
  33. H. F. Lu, “Near-Optimal Designs of Hybrid Precoding and Combining for Massive MIMO Systems From Lattice Decoding,” IEEE Trans. Veh. Technol., vol. 72, no. 8, pp. 10521-10533, Aug. 2023.
  34. H. F. Lu, "Finite Resolution RIS-aided MIMO Downlink Communications Based on SZFDPC," IEEE Trans. Veh. Technol., vol. 73, no. 7, pp. 10793-10798, Jul. 2024.
  35. H. F. Lu, "A Novel Discrete Phase RIS-Aided MIMO Multiuser Transceiver Design Using Dirty Paper Coding," IEEE Commun. Letters, vol. 29, no. 4, pp. 848-852, Apr. 2025.

Conference Papers:

1. H. F. Lu and P. V. Kumar, "A novel suboptimal CDMA multiuser detector," 38th annual Allerton Conf. on communication, control, and computing, vol. 2, pp. 845-846, Oct. 2000.
2. P. V. Kumar, H. F. Lu, and T. Helleseth, and D. J. Shin, "On the large family of low correlation quaternary sequences S(2)," in Proc. 2000 IEEE ICPWC.
3. H. F. Lu and P. V. Kumar, "On the distance distribution of CDMA multiuser signal set," in Proc. IEEE ISIT 2001, Washington D.C., p. 174, June 2001.
4. H. F. Lu, Y. Wang, P. V. Kumar, and K. M. Chugg, "On pairwise error probability of space-time codes," in Proc. IEEE ISIT 2002, Lausanne, Switzerland, p. 330, June 2002.
5. H. F. Lu, P. V. Kumar, and H. Chung, "On orthogonal designs and space-time codes," in Proc. IEEE ISIT 2002, Lausanne, Switzerland, p. 418, June 2002.
6. H. F. Lu, Y. Wang, P. V. Kumar, and K. M. Chugg, "On pairwise error probability of space-time codes," Invited Paper, in Proc. 2002 IEEE ITW, Bangalore, India, Oct. 2002.
7. H. F. Lu and P. V. Kumar, "Rate-diversity tradeoff of space-time codes with fixed alphabet and optimal constructions for PSK modulation," in Proc. IEEE ISIT 2003, p. 242, Yokohama, Japan, June 2003.
8. O. Moreno, P. V. Kumar, and H. F. Lu, "New constructions for optical orthogonal codes, distinct different sets, and difference triangle sets," in Proc. IEEE ISIT 2003, p. 327, Yokohama, Japan, June 2003
9. R. Omrani, H. F. Lu, P. V. Kumar, and O. Moreno, "LDPC codes from optical orthogonal codes," in Proc. IEEE ISIT 2003, p. 60, Yokohama, Japan, June 2003
10. H. F. Lu and P. V. Kumar, "'Constructing optimal space-time codes over various signal constellations'," in Proc. Globecom 2003, vol. 4, pp. 1973 - 1977, San Francisco, CA, Dec. 2003
11. H. F. Lu and P. V. Kumar, "Algebraic constructions of optimal space-time trellis codes," in Proc. Globecom 2003, vol. 4, pp. 1984 - 1988, San Francisco, CA, Dec. 2003
12. P. Elia and H. F. Lu, "Packing related bounds on the distance distribution of binary unrestricted codes," in Proc. 41th annual Allerton Conf., Oct. 2003.
13. P. V. Kumar and H. F. Lu, "A unified construction of space-time codes with optimal rate-diversity tradeoff," 2003 DIMACS Workshop on Algebraic Coding Theory and Information Theory, DIMACS Center, Rutgers University, Piscataway, NJ. Dec. 15-18, 2003.
14. H. F. Lu and P. V. Kumar, "A unified construction of space-time codes with optimal rate diversity tradeoff," in Proc. NCC 2004, Bangalore, India, Jan 30 - Feb 1, 2004.
15. H. F. Lu and P. V. Kumar, "Optimal construction of space-time block codes over multiple blocks," in Proc. IEEE ISIT 2004, Chicago, IL, Jul. 2004.
16. H. F. Lu and P. V. Kumar, "Generalized unified construction of space-time codes with optimal rate-diversity tradeoff," in Proc. IEEE ISIT 2004, Chicago, IL, July 2004.
17. P. V. Kumar and H. F. Lu, "On the decoding and diversity-multiplexing gain tradeoff of a recent multilevel construction of space-time codes," in Proc. IEEE ISIT 2004, Chicago, IL, July 2004.
18. P. Elia, S. A. Pawar, K. Raj Kumar, P. V. Kumar, B. S. Rajan, and H. F. Lu, "Diversity multiplexing tradeoff analysis of a few algebraic space-time constructions," in Proc. 42nd Annual Allerton Conf., Oct. 2004.
19. H. F. Lu, "Generalized Super-Unified Constructions for Space-Time Codes," in Proc. NCC 2005, Kharagpur, India, 28 -30 Jan. 2005.
20. P. Elia, S. A. Pawar, K. R. Kumar, P. V. Kumar, and H. F. Lu, "Space-Time Codes Optimal Under the Diversity-Multiplexing Gain Tradeoff," in Proc. NCC 2005, Kharagpur, India, 28 -30 Jan. 2005.
21. K. R. Kumar, S. A. Pawar, P. Elia, P. V. Kumar, and H. F. Lu, "Two Generalizations of the Rank-Distance Space-Time Code," in Proc. NCC 2005, Kharagpur, India, 28 -30 Jan. 2005.
22. H. F. Lu, P. Elia, S. A. Pawar, K. Raj Kumar, and P. V. Kumar, "Space-time codes meeting the diversity-multiplexing gain tradeoff with low signalling complexity," in Proc. CISS 2005, Baltimore, MD, 16-18 Mar. 2005.
23. H. F. Lu, "Generalized super-unified constructions for space-time Codes," in Proc. ICC 2005, Seoul, Korea, May 2005.
24. P. Elia, S. A. Pawar, K. Raj Kumar, P. V. Kumar, and H. F. Lu, "Explicit, minimum-delay space-time codes achieving the diversity-multiplexing gain tradeoff," in Proc. IEEE ISIT 2005, pp. 896-900, Adelaide, Australia, Sep. 4-9, 2005.
25. H. F. Lu and M. C. Chiu, "Constructions of space-frequency codes for MIMO-OFDM systems," in Proc. IEEE ISIT 2005, pp. 2085-2089, Adelaide, Australia, Sep. 4-9, 2005
26. H. F. Lu, "Space-time codes with AM-PSK signalings," in Proc. ISCOM 2005, Kaohsiung, Taiwan.
27. H. F. Lu, "Constructions of Multi-Block Space-Time Coding Schemes That Achieve The Diversity-Multiplexing Tradeoff," in Proc. IEEE ISIT 2006, Seattle, WA. July 2006
28. M. C. Chiu and H. F. Lu, "Algebraic Constructions of Space-Frequency Codes and Their Decoding Algorithms," in Proc. ICC 2007, Glasgow, UK, Jun. 2007.
29. H. F. Lu, "Optimal Code Constructions for SIMO-OFDM Frequency Selective Fading Channels," in Proc. ITW 2007, Bergen, Norway, Jul. 2007.
30. H. F. Lu, "Binary Linear Network Codes," in Proc. ITW 2007, Bergen, Norway, Jul. 2007.
31. H. F. Lu, "Low Complexity Constructions of Multi-Block Space-Time Codes Achieving Diversity-Multiplexing Tradeoff," in Proc. Globecom 2007, pp. 1724 - 1728. Washington D.C., Nov. 26-30, 2007
32. C. Hollanti and H. F. Lu, “Normalized Minimum Determinant Calculation for Multi-Block and Asymmetric Space-Time Codes,'' in The 17th Int. Conf. on Applied Algebra, Algebraic Computation, and Error Correcting Codes (AAECC-17), Bangalore, India, Dec. 2007.
33. H. F. Lu, “Constructions of Fully-Diverse High-Rate Space-Frequency Codes for Asynchronous Cooperative Relay Networks,” in Proc. 2008 IEEE Int. Symp. on Inform. Theory (ISIT), Toronto, Canada, pp. 832-836, July 2008.
34. C. Hollanti and H. F. Lu, “Constructing Asymmetric Space-Time Codes with the Smart Puncturing Method,” in Proc. 2008 IEEE Int. Symp. on Inform. Theory (ISIT), Toronto, Canada, pp. 1488-1492, July 2008.
35. H. F. Lu, “Diversity-Multiplexing Tradeoff Optimal Codes for OFDM-Based Asynchronous Cooperative Networks,” in Proc. 2008 IEEE Int. Symp. on Inform. Theory (ISIT), Toronto, Canada, pp. 1701-1705, July 2008.
36. H. F. Lu and C. Hollanti, “On the Construction of DMT-Optimal AST Codes with Transmit Antenna Selection,” in Proc. 2008 IEEE Int. Symp. on Inform. Theory (ISIT), Toronto, Canada, pp. 2371-2375, July 2008.
37. H. F. Lu, “Optimal Diversity Multiplexing Tradeoff of Constrained Asymmetric MIMO Systems,” in Proc. Globecomm 2008, New Orleans, LA, Nov. 2008.
38. H. F. Lu and C. Hollanti "Diversity-Multiplexing Tradeoff-Optimal Code Constructions for Symmetric MIMO Multiple Access Channels," in Proc. 2009 IEEE Int. Symp. on Inform. Theory (ISIT), Seoul, Korea, July 2009.
39. C. Hollanti, H. F. Lu, and R. Vehkalahti, "An Algebraic Tool for Obtaining Conditional Non-Vanishing Determinants," in Proc. 2009 IEEE Int. Symp. on Inform. Theory (ISIT), Seoul, Korea, July 2009.
40. J. Lahtonen, R. Vehkalahti, H. F. Lu, C. Hollanti, and E. Vitero, "On the decay of the determinants of multiuser MIMO lattice codes," in Proc. ITW 2010, Cairo, Egypt, Jan. 2010.
41. H. F. Lu, J. Lahtonen, R. Vehkalahti, and Camilla Hollanti, "Remarks on the criteria of constructing MIMO-MAC DMT optimal codes," in Proc. ITW 2010, Cairo, Egypt, Jan. 2010.
42. H. F. Lu, “Diversity-multiplexing tradeoff in MIMO Gaussian interference channels,” in Proc. 2010 IEEE Int. Symp. Inf. Theory (ISIT 2010), Austin, TX, Jun. 2010.
43. H. F. Lu, “Approximately universal MIMO diversity embedded codes,” in Proc. 2010 ISITA, Taichung, Taiwan, Oct. 2010.
44. R. Vehkalahti, C. Hollanti, J. Lahtonen, and H. F. Lu, “Some simple observations on MISO codes,” in Proc. 2010 ISITA, Taichung, Taiwan, Oct. 2010.
45. T. W. Tang, M. K. Chen, and H. F. Lu, "Improving the DMT Performances of MIMO Linear Receivers, in Proc. 2011 IEEE Int. Symp. Inf. Theory (ISIT 2011), Saint Petersburg, Russia, Aug. 2011.
46. R. Vehkalahti and H. F. Lu, "An algebraic look into MAC-DMT of lattice space-time codes," in Proc. 2011 IEEE Int. Symp. Inf. Theory (ISIT 2011), Saint Petersburg, Russia, Aug. 2011.
47. R. Vehkalahti and H. F. Lu, "Diversity-multiplexing Gain Tradeoff: a Tool in Algebra?" in Proc. 2011 IEEE Inform. Theory Workshop (ITW 2011), Paraty, Brazil, Oct. 2011.
48. S. M. Huang, H. F. Lu, and S. M. Moser, “Minimal Rate Description for Multiple Access Channels,” in Proc. 2012 Int. Symp. on Inform. Theory and its Applications (ISITA 2012), Honolulu, Hawaii, USA, Oct. 2012.
49. C. F. Liu, H. F. Lu, and P. N. Chen, “Analysis and Practice of Uniquely Decodable One-to-One Code,” in Proc. 2013 IEEE Int. Symp. Inf. Theory (ISIT 2013), Istanbul, Turkey, Jul. 2013.
50. A. Barreal, C. Hollanti, D. Karpuk and H. F. Lu, “Space-Time Storage Codes for Wireless Distributed Storage Systems,'' in Proc. 2014 WirelessVITAE Global Wireless Summit, Aalborg, Denmark, May 11-14, 2014
51. A. Barreal, C. Hollanti, D. Karpuk and H. F. Lu, “Algebraic Codes and a New Transmission Protocol for Physical Layer Distributed Storage Systems,'' in Proc. 21st International Symposium on Mathematical Theory of Networks and Systems, University of Groningen, Groningen, The Netherlands. Jul. 7-11, 2014.
52. T. W. Tang, H. T. Tien, and H. F. Lu, “Coding Schemes With Constant Sphere-Decoding Complexity and High DMT Performance for MIMO Multiple Access Channels With Low-Rate Feedback,'' in Proc. 2014 IEEE Int. Symp. Inf. Theory (ISIT 2014), Honolulu, Hawaii, Jul. 2014
53. A. Singh, P. Elia, and H. F. Lu, “Performance-Complexity Analysis for MIMO Multiple-Access Channels with Lattice based Sphere Decoders,'' in Proc. 2014 IEEE APWCS, Taiwan. Aug. 2014.
54. C. Hollanti, H. F. Lu, D. Karpuk, and A. Barreal, “New Relay-Based Transmission Protocols for Wireless Distributed Storage Systems,” in Proc. 2014 ISITA, Melbourne, Australia, pp. 585-589, Oct. 26-29, 2014.
55. C. Lai, M. Hsieh, and H. F. Lu, “A Complete MacWilliams Theorem for Convolutional Codes,'' in Proc. 2014 IEEE Information Theory Workshop, Hobart, Tasmania, Australia, pp. 157-161, Nov. 2-5, 2014.
56. H. F. Lu, “Optimal distributed codes with delay four and constant decoding complexity,’’ in Proc. 2015 IEEE Int. Symp. Inf. Theory (ISIT 2015), Hong Kong, Jun. 2015
57. H. F. Lu, “Rate-split based decode-and-forward protocols for cooperative communications,” in Proc. 2015 International Workshop on Signal Design and its Applications in Communications (IWSDA’15), Bengaluru, India, Sep. 2015.
58. H. F. Lu, "Rate-Split Dynamic Decode-and-Forward Protocol for Feedback-Aided Cooperative Communications," 13th IEEE VTS Asia Pacific Wireless Communications Symposium, Tokyo, Japan, Aug. 2016.
59. H. F. Lu, "A Feedback-Aided Rate-Split Decode-and-Forward Protocol for Static Cooperative Communications," in Proc. 2016 ISITA, Monterey, California, USA, Oct. 2016.
60. Y. T. Cheng and H. F. Lu, "Optimal Sum Rate-Fairness Tradeoff for MISO Broadcast Communication Using Zero Forcing DPC," 2019 IEEE 90th Vehicular Technology Conference, Honolulu, HA, USA, Oct. 2019.
61. H. F. Lu, "On Sum-Rate and Fairness of MIMO Downlink Communications," 2021 IEEE 94th Vehicular Technology Conference: VTC2021-Fall, Online, Sep. 2021.
62. H. F. Lu, "Near-Optimal Designs of Hybrid Massive MIMO Systems from Lattice Decoding," in Proc. 2022 ISITA, Tsukuba, Japan, Oct. 2022.
63. L. M. Lyu, H. C. Huang and H. F. Lu, "Designs of Finite Resolution IRS-aided MIMO Multiuser Communications Based on SZFDPC," in Proc. 2023 APCC, Sydney, Australia, Nov. 2023.
64. H. F. Lu, "DPC-Coded MIMO Multiuser Communications using RIS with Discrete Phase Shifts," in Proc. 2024 ISITA, Taipei, Taiwan, Oct. 2024.

Patents:

Galois Field Computation (US Patent 7,668,895), Co-Inventors: Dr. Huashih Lin and Prof. Lloyd R. Welch, Feb. 23, 2010
Encoding and decoding methods and systems (US Patent 7,774,689), Co-Inventor: Prof. Mao-ching Chiu, Aug. 10, 2010.

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