Sony Akkarakaran

Caltech, 136-93
Pasadena, CA 91125

Office: 626-395-2210
Fax: 626-795-8649

Email contact: sony@systems.caltech.edu

My resume (pdf)

Publications

Ph.D. Thesis (ps, gzipped) (pdf, gzipped)

All papers by chronology: Journal papers , Conference papers , Book chapter

By subject:
Statistical optimization of filter banks; principal component forms
Optimal filter banks for communications
Nonuniform filter banks
Multirate systems theory

Statistical optimization of filter banks; principal component forms

  • S. Akkarakaran and P. P. Vaidyanathan, "Filter bank optimization with convex objectives, and the optimality of principal component forms," IEEE Trans. Signal Processing, vol. 49, no. 1, pp. 100-114, January 2001. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "Results on principal component filter banks: colored noise suppression and existence issues," IEEE Trans. Information Theory, vol. 47, no. 3, pp. 1003-1020, March 2001. Paper (ps) (pdf)

  • P. P. Vaidyanathan and S. Akkarakaran, "A review of the theory and applications of optimal subband and transform coders," (invited paper) Appl. Comput. Harmonic Analysis, vol. 10, no. 3, pp. 254-289, May 2001. Paper (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "Optimized orthonormal transforms for SNR improvement by subband processing," in IEEE Workshop on Signal Proc. Advances in Wireless Comm., Annapolis, MD, May 1999. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "On optimization of filter banks with denoising applications," in Proc. IEEE Int. Symp. Circuits and Systems, Orlando, FL, June 1999. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "The best basis problem, compaction problem and PCFB design problems," in Proc. IEEE Int. Symp. Circuits and Systems, Orlando, FL, June 1999. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "The role of principal component filter banks in noise reduction," in Proc. SPIE, Denver, CO, July 1999. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "Principal component filter banks: existence issues, and application to modulated filter banks," in Proc. IEEE Int. Symp. Circuits and Systems, Geneva, May 2000. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "On Nonuniform Principal Component Filter Banks: Definitions, Existence and Optimality," in Proc. SPIE, San Diego, CA, July 2000. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "On optimal transforms for subband domain suppression of colored noise," in Proc. IEEE Int. Conf. Acoust. Speech, and Signal Proc., Salt Lake City, UT, May 2001. Paper (ps) (pdf)

    Optimal filter banks for communications

  • P. P. Vaidyanathan, Y.-P. Lin, S. Akkarakaran, and S.-M. Phoong, "Discrete multitone modulation with principal component filter banks," IEEE Trans. Circuits and Systems --I, vol. 49, no. 10, pp. 1397-1412, October 2002. Paper (pdf)

  • P. P. Vaidyanathan, Y.-P. Lin, S. Akkarakaran, and S.-M. Phoong, "Optimality of principal component filter banks for discrete multitone communication systems," in Proc. IEEE Int. Symp. Circuits and Systems, Geneva, May 2000. Paper (pdf)

  • Y.-P. Lin, P. P. Vaidyanathan, S. Akkarakaran, and S.-M. Phoong, "On the duality of optimal DMT systems and biorthogonal subband coders," in Proc. IEEE Int. Conf. Acoust. Speech, and Signal Proc., Istanbul, Turkey, June 2000. Paper (ps) (pdf)

  • P. P. Vaidyanathan, Y.-P. Lin, S. Akkarakaran, and S.M. Phoong, "Optimizing the capacity of orthogonal and biorthogonal DMT channels," in Proc. EUSIPCO, Tampere, Finland, September 2000. Paper (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "Discrete multitone communication with principal component filter banks," in Proc. Int. Conf. Comm., Helsinki, Finland, June 2001. Paper (pdf)

    Nonuniform filter banks

  • S. Akkarakaran and P. P. Vaidyanathan, "New results and open problems on nonuniform filter-banks," in Proc. IEEE Int. Conf. Acoust. Speech, and Signal Proc., Phoenix, AZ, March 1999. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "On Nonuniform Principal Component Filter Banks: Definitions, Existence and Optimality," in Proc. SPIE, San Diego, CA, July 2000. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "Are Nonuniform principal component filter banks optimal?", in Proc. EUSIPCO, Tampere, Finland, September 2000. Paper (ps) (pdf)

    Multirate systems theory

  • S. Akkarakaran and P. P. Vaidyanathan, "Bifrequency and bispectrum maps: a new look at multirate systems with stochastic inputs," IEEE Trans. Signal Processing, vol. 48, no. 3, pp. 723-736, March 2000. Paper (ps) (pdf)

  • S. Akkarakaran and P. P. Vaidyanathan, "New insights into multirate systems with stochastic inputs using bifrequency analysis," in Proc. IEEE Int. Symp. Circuits and Systems, Monterey, CA, June 1998. Paper (ps) (pdf)


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    Last updated March 30, 2004.