Notice of Violation of IEEE Publication PrinciplesResilient adaptive wavelet packet modulation scheme for use in time and frequency selective channels using a best tree search algorithm

Notice of Violation of IEEE Publication Principles

"Resilient adaptive wavelet packet modulation scheme for use in time and frequency selective channels using a best tree search algorithm,"
Kaewmannee", P.; Ormondroyd, R.F.; Walters, C.R.;
Proceedings of the IEEE Military Communications Conference 2004 (MILCOM 2004), vol. 3, 31 Oct.-3 Nov. 2004, pp. 1566 - 1571, DOI 10.1109/MILCOM.2004.1495172

After careful and considered review of the content and authorship of the above paper by a duly constituted expert committee, the principal author of this paper has been found to be in violation of IEEE?s Publication Principles.

This paper contains significant portions of original text from the paper cited below. The original text was copied without attribution (including appropriate references to the original author(s) and/or paper title) and without permission. Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article:

"Optimal wavelet packet modulation under finite complexity constraint,"
Daly, D.; Heneghan, C.; Fagan, A.; Vetterli, M.;
Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing 2002 (ICASSP ?02), vol. 3, 13-17 May 2002, pp. :III-2789 - III-2792, DOI 10.1109/ICASSP.2002.1005265

An adaptive wavelet packet orthogonal modulation scheme using an adaptive \´best tree\´ search algorithm is presented and its performance is compared with that of a conventional coded orthogonal frequency division multiplexed system over a frequency selective fading channel. The capacity of the OFDM system is compromised by the need for a cyclic prefix to counter ISI. Conversely, a communication system based on wavelet packets allows the signal energy to be intelligently localised both in time and frequency without the need of a cyclic prefix. Using the known time and frequency selective fadin- g characteristics of the channel, an adaptive algorithm is used to find the best basis tree using the Karush-Kuhn-Tucker condition that optimises the capacity subject to the constraint of the available power for the fading channel by maximising the symbol energy in the received signal in both frequency and time. The performance of the new system without a cyclic prefix is superior to that of the OFDM system with a cyclic prefix in frequency selective fading and it can achieve a higher data rate.