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Centre for Telecommunications and Information Engineering

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Introduction/Contact Details

About Dr. Armstrong

Teaching and Supervision

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Publications

Recent Publications

Orthogonal Frequency Division Multiplexing (OFDM) and other Digital Communications Topics

2004

  1. 1. H. A. Suraweera and J. Armstrong, “Noise bucket effect of impulse noise in OFDM,” IEE Electronics Letters,  in press

  2.  J. Armstrong and H. A. Suraweera, “Decision directed impulse noise mitigation for OFDM in frequency selective fading channels,” in Proc. IEEE GLOBECOM 2004, Dallas, TX, USA, Nov./Dec. 2004, in press

  3. J. Armstrong,  H. A. Suraweera, Simon Brewer and Robert Slaviero, “Effect of rounding and saturation in fixed-point DSP implementation of IFFT and FFT for OFDM applications”, accepted for The Embedded Signal Processing Conference (GSPx 2004), Santa Clara, CA, USA, September 2004. [pdf]

  4. J. Armstrong, M. Feramez and H. A. Suraweera, "Optimum noise thresholds in decision directed impulse noise mitigation for OFDM", accepted for International Symposium on Communication Systems Networks and Digital Signal Processing (CSNDSP 2004), Newcastle upon Tyne, UK, July 2004. [pdf]

  5. H. A. Suraweera, K. Panta, M. Feramez  and J. Armstrong, "OFDM peak-to-average power reduction scheme with spectral masking",  accepted for International Symposium on Communication Systems Networks and Digital Signal Processing (CSNDSP 2004), Newcastle upon Tyne, UK, July 2004. [pdf]

  6. C. Chai and J. Armstrong, "Simulation study of WFQ packet scheduling mechanism for different coding schemes in GPRS networks", accepted for International Symposium on Communication Systems Networks and Digital Signal Processing (CSNDSP 2004), Newcastle upon Tyne, UK, July 2004.

  7. J. Armstrong and H. A. Suraweera, "Impulse noise mitigation for OFDM using decision directed noise estimation", accepted for IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2004), Sydney, Australia, Aug./Sep 2004. [pdf]

  8. J. Shentu and J. Armstrong: “Blind frequency offset estimation for PCC-OFDM systems”, IEICE Transactions on Communications, vol. E87-B, No. 1, Jan 2004, pp.29-35.

  9. Kusha Panta and J. Armstrong, "Effects of Clipping on the Error Performance of OFDM in Frequency Selective Fading Channels," IEEE Transactions on Wireless Communication, vol. 3, March 2004, pp. 668-671.  [pdf]

  10. H. A. Suraweera and J. Armstrong, "M-QAM OFDM and PCC-OFDM performance in the presence of phase noise," in Proc. 5th Australian Communications Theory Workshop (AusCTW 2004), Newcastle, NSW, Australia, Feb. 2004, pp. 98-103. [pdf]

  11. K. Panta, H. A. Suraweera and J. Armstrong, "Performance of PCC-OFDM in multipath fading channels ", in Proc.  Australian Communications Theory Workshop (AusCTW 2004), Newcastle, NSW, Australia, Feb. 2004, pp. 118-121. [pdf]

  12. C. Chai and J. Armstrong, "Simulation study of packet scheduling mechanisms by providing different classes of services in GPRS network", presented in 5th Australian Communication Theory Workshop (AusCTW 2004), Newcastle, NSW, Australia, Feb. 2004. (not reviewed)

2003

  1. Kusha Panta and J. Armstrong," Spectral Analysis of OFDM Signals and its Improvement by Polynomial Cancellation Coding," IEEE Trans. on Consumer Electronics, vol 49, no. 4, Nov 2003, pp. 939-943. [pdf]

  2. J. Shentu, K. Panta and J. Armstrong, "Effects of Phase Noise on the Performance of OFDM Systems using an ICI Cancellation Scheme", IEEE Transactions on Broadcasting, vol. 49, June 2003, pp. 221-224. [pdf]

  3. J. Shentu and J. Armstrong, “Blind frequency offset estimation for Overlap PCC-OFDM systems in presence of phase noise”,  the Journal of Telecommunications and Information Technology, 2003, pp. 17-27. [pdf]

  4. H. A. Suraweera, C. Chai, J. Shentu and J. Armstrong, "Analysis of Impulse Noise Mitigation techniques for Digital Television Systems", in  Proc. 8th International OFDM Workshop (InOWo '04), Hamburg, Germany, September 2003, pp. 172-176. [pdf]

  5. J. Armstrong, "Overcoming the Limitations of OFDM: Reducing Signal Peaks and Third Generation Modulation Techniques," invited presentation in Australian Communications Theory Workshop 2003, Melbourne, Australia, Feb 5-7 2003.

2002

  1. J. Armstrong, "Peak-to-average power reduction for OFDM by repeated clipping and frequency domain filtering", Electronics Letters. Vol. 38, No.5. pp 246-247. February 2002. [pdf]

  2. J. Armstrong, "Equalizer for PCC-OFDM with Overlapping Symbol Periods," IEEE Globecom, Dec 2002, Taiwan. pp 574-578. [pdf]

  3. Kusha Panta and J. Armstrong, "Spectral Analysis of OFDM Signals and its Improvement by Polynomial Cancellation Coding," Proc. of The 1st Workshop on the Internet, Telecommunications and Signal Processing, WITSP'02, p. 67-71, Dec 2002. Australia. [pdf]

  4. J. Shentu and J. Armstrong, "Effects of Phase Noise on the Performance of PCC-OFDM," Proc. of The 1st Workshop on the Internet, Telecommunications and Signal Processing, WITSP'02, p. 50-54, Dec 2002. Australia.[pdf]

  5. J. Shentu and J. Armstrong, "Frequency Offset Estimation for PCC-OFDM with Symbol Overlapped in Time Domain," Proc. of The 1st Workshop on the Internet, Telecommunications and Signal Processing, WITSP'02, p. 50-54, Dec 2002. Australia. [pdf]

  6. J. Armstrong and M. Feramez, "Computationally Efficient Implementation of OFDM Peak-to-Average Power Reduction Technique", Proceeding of Third International Symposium, on Communication Systems, Networks and Digital Signal Processing, Stafford, July 2002, pp 236-239. [pdf] 

  7. J. Armstrong, "Peak-to-average power reduction in digital television transmitters", DICTA2002 conference, Melbourne, January 2002, pp19-24. [pdf]

  8. Kusha Panta and J. Armstrong, "The performance of overlap PCC-OFDM with error-correcting codes", 6th International Symposium on DSP for Communication Systems, Sydney, January 2002, pp.118-122. [pdf]

  9. Kusha Panta and J. Armstrong, "Use of Peak-to-Average Power Reduction Technique in HIPERLAN2 and its Performance in Fading Channel’, 6th International Symposium on DSP for Communication Systems, Sydney, January 2002, pp113-117. [pdf]

2001  and earlier

  1. Jinwen Shentu, J. Armstrong and G. Tobin, "MMSE Frequency Offset Estimator for PCC-OFDM", 5th IEEE Malaysia International Conference on Communications, October 2001, Kuala Lumpur, pp. 304-309.

  2. J. Armstrong, "PCC-OFDM with Reduced Peak-to-Average Power Ratio", in IEEE 3Gwireless'2001, May 30-June 2, 2001, San Francisco, pp. 386-391. [pdf]

  3. J. Armstrong, "New OFDM Peak-to-Average Power Reduction Scheme", IEEE VTC'2001 May 2001, Rhodes, Greece. [pdf]

  4. Jinwen Shentu and Jean Armstrong, "Blind Estimation of Time and Frequency Offset for PCC-OFDM", IEEE VTC'2001 May 2001, Rhodes, Greece.[pdf]

  5. Jinwen Shentu and J. Armstrong, "Blind Frequency Offset Estimation for PCC-OFDM with Symbols overlapped in the Time Domain" in IEEE ISCAS conference, Sydney, May 2001, pp. 571-573. [pdf]

  6. J. Armstrong T. Gill and C. Tellambura, "Performance of PCC-OFDM with overlapping symbol periods in a multipath channel", in IEEE Globecom, November 2000, pp. 87-91. [pdf]

  7. Jinwen Shentu and J. Armstrong, "A New Frequency Offset Estimator for OFDM", Second International Symposium on Communications Systems, Networks and Digital Signal Processing, Bournemouth, July 2000, pp. 13-16. [pdf]

  8. J. Armstrong and C. Tellambura, "Multicarrier CDMA systems using PCC-OFDM", IEEE Vehicular Technology Conference, May 2000, pp. 1475-1479. [pdf]

  9. J. Armstrong, J. Shentu and C. Tellambura, "Frequency Domain Equalization for OFDM systems with mapping of data onto subcarrier pairs and overlapping symbol periods", "Coding, Communications and Broadcasting", pp. 217-228, edited by P.G. Farrell, Mike Darnell and Bahram Honary, March 2000, Research Studies Press. [pdf]

  10. K. A. Seaton and J. Armstrong, "Polynomial Cancellation Coding and Finite Differences", IEEE Transactions on Information Theory, pp. 311-313, January 2000. [pdf]

  11. J. Armstrong, J. Shentu and C. Tellambura, "Frequency Domain Equalization for OFDM systems with mapping of data onto subcarrier pairs and overlapping symbol periods", Proceedings of the 5th International Symposium on Communications Theory and Applications, Ambleside, England, July 1999, pp. 102-104[pdf]

  12. J. Armstrong, "Analysis of new and existing methods of reducing intercarrier interference due to carrier frequency offset in OFDM", IEEE Transactions on Communications, vol. 47, pp. 365-369, March 1999. [pdf]

  13. J. Armstrong, P.M. Grant, G. Povey, "Polynomial cancellation coding of OFDM to reduce Intercarrier interference due to Doppler spread", in Proceedings of IEEE Globecom 1998, vol. 5,1998, pp. 2771-2776. [pdf]

  14. J. Armstrong, T.S. Gill, Jinwen Shentu, "Amplitude Statistics for Polynomial Cancellation Coded OFDM signals’, Proceedings of IEEE International Workshop on Intelligent Signal Processing and Communication Systems, vol 1, 1998, pp. 43-47. [pdf]

  15. J. Royston and J. Armstrong, "Using OFDM for channel estimation," Proceedings of the third Asia Pacific Conference on Communications, Sydney, December 1997, pp. 1438-1442.

Patents:
  1. J. Armstrong, "Data transmission and reception in multicarrier modulation systems", Patent Cooperation Treaty Application, May 1999, Publication number WO9962207, available on WWW at http://gb.espacenet.com/ and full Australian patent granted 2003.
  2. Provisional patent on aspects of OFDM 2003
  3. Provisional patents on aspects of OFDM 2004

Engineering Education

  1. J. Armstrong, L. Wilkins and P. Watson, "Job seeking skills for engineers: the use of role play in a learning exercise", 13th Annual Conference of Australasian Association for Engineering Education.  September 2002, pp. 21-26.[pdf]

  2. J. Armstrong, "Commercializing engineering research in Australia", 13th Annual Conference of Australasian Association for Engineering Education.  September 2002, pp. 27-32 [pdf].

  3. J. I. Stewart and J. Armstrong, "Lifelong Learning for Engineers and Engineering Academics", Proceedings of the PRCEEE 1999. pp. 84-89.
  4. J. Armstrong, "Workload in engineering courses and how to reduce it", Proceedings of the 8th Annual Convention and Conference of the Australasian Association for Engineering Education, Sydney, December 1996, pp. 186-189. [pdf]
  5. J. Royston and J. Armstrong, "What is an engineer? Looking to the past to inform the future", Proceedings of the 8th Annual Convention and Conference of the Australasian Association for Engineering Education, Sydney, December 1996, pp. 329-331.
  6. J. Armstrong and J. F. Royston, "Integrating Communication Skills in a Telecommunications Engineering Course", Proceedings of the 1996 Australian Communication Conference, Melbourne, September 1996, pp. 205-215. [pdf]
  7. J. Armstrong and J. Royston, "A telecommunications course to develop lifelong learning skills", Proceedings of the 7th Annual Convention and Conference of the Australasian Association for Engineering Education, Melbourne, December 1995, pp. 476-479. [pdf]

Women in Engineering
  1. C. Bellis and J. Armstrong, "The relative position of men and women engineering academics in Australia," Australasian Journal of Engineering Education, pp. 25-43, 1998.
  2. J. Armstrong and C. Bellis, "Women Engineering Academics in Australia: Trends in Employment", Proceedings of the 7th Annual Convention and Conference of the Australasian Association for Engineering Education, Melbourne, December 1995, pp. 231-235. [pdf]
  3. J. Armstrong and G. Leder, "Engineering education: how to design a gender-inclusive curriculum" Proceedings of the International Congress of Engineering Deans and Industry Leaders, Melbourne, July 1995, pp. 292-297. [pdf]
  4. J. Armstrong, "Women Engineers in Tertiary Education in Australia: The structural and cultural barriers they face" Proceedings of Second National Conference on Equity and Access in Higher Education, Melbourne, July 1995. [pdf]

 

 

 

 

   

 

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