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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 areâ€¦ (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 forâ€¦ (More)

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

A hardware detector for constant envelope quadrature-quadrature phase-shift keying (CEQPSK) is proposed. It uses appropriate hard decisions; yet, it achieves optimum probability of bit errorâ€¦ (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, andâ€¦ (More)

- Kenneth V. Cartwright, Edit J. Kaminsky
- GLOBECOM '05. IEEE Global Telecommunicationsâ€¦
- 2005

The eighth-order (EOE) phase estimator (K.V. Cartwright, 1999) is modified to work for an eight-symbol symmetrical constellation, so that the large signal-to-noise (SNR) performance is not limited byâ€¦ (More)

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 andâ€¦ (More)

- Milton I. Quinteros, Edit J. Kaminsky, Kenneth V. Cartwright
- GLOBECOM 2009 - 2009 IEEE Globalâ€¦
- 2009

This paper presents a TCM scheme that uses a new expanded 16-Dimensional Constant Envelope QPSK constellation along with a simple convolutional encoder of rate 2/3. An effective gain of 2.67 dB overâ€¦ (More)

- Milton I. Quinteros, Kenneth V. Cartwright, Ricardo U. Gallegos
- 2016

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 andâ€¦ (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 (Q<sup>2</sup> PSK), Constant Envelope (CE) Q<sup>2</sup> PSK, and trellisâ€¦ (More)