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- Kenneth V. Cartwright
- IEEE Communications Letters
- 2000

It is well established that the fourth power phase estimator does not perform well for QAM cross (i.e., odd-bit) constellations. In this paper, new two-dimensional rectangular constellations are… (More)

- Kenneth V. Cartwright, Edit J. Kaminsky
- IEEE Signal Processing Letters
- 2001

A new method for blind phase estimation that uses eight-order statistics is described. For cross QAM constellations, it provides about the same root mean square error (RMSE) as the fourth power… (More)

- Kenneth V. Cartwright, Edit J. Kaminsky
- GLOBECOM '05. IEEE Global Telecommunications…
- 2005

A hardware detector for constant envelope quadrature-quadrature phase-shift keying (CEQ/sup 2/PSK) is proposed. It uses appropriate hard decisions; yet, it achieves optimum probability of bit error… (More)

- Edit J. Kaminsky, James Ayo, Kenneth V. Cartwright
- Journal of Communications and Networks
- 2002

We present a family of constant-amplitude constellations of even dimensions 8 and above. These constellations allow trellis coded modulation to be implemented without the usual penalty paid for… (More)

- Kenneth V. Cartwright, Edit J. Kaminsky
- GLOBECOM
- 2005

- S. T. Hsieh, Kenneth V. Cartwright, P. F. Duvoisin, Edward P. Williamson
- IEEE Trans. Communications
- 1991

Three different adaptive diagonalizers are compared on a probability of symbol error performance basis for dual-channel M-QAM systems. One diagonalizer ( 0 3 ) greatly outperforms the other two, and… (More)

The maximum gain (with respect to frequency) of second-order filters such as low-pass, high-pass, band-pass, low-pass notch and high-pass notch filters is derived without using calculus. Our method… (More)

- Milton I. Quinteros, Edit J. Kaminsky, Kenneth V. Cartwright
- 2014 IEEE Global Communications Conference
- 2014

The authors present theoretical performance analysis and simulation results for Quadrature-Quadrature Phase Shift Keying (Q2 PSK), Constant Envelope (CE) Q2 PSK, and trellis coded 16D CEQ2 PSK in… (More)

- Milton I. Quinteros, Edit J. Kaminsky, Kenneth V. Cartwright
- GLOBECOM 2009 - 2009 IEEE Global…
- 2009

We introduce a 16-dimensional constant-amplitude constellation that is generated by concatenating either four constant envelope quadrature-quadrature phase shift keying (CEQPSK) symbols from Saha and… (More)

We derive an expression for the input complex impedance of a Sallen-Key second-order low-pass filter of unity gain as a function of the natural frequency , o quality factor Q and the ratio of the… (More)