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- Terasan Niyomsataya, Ali Miri, Monica Nevins
- IEEE Trans. Information Theory
- 2007

- T. Niyomsataya, A. Miri, M. Nevins
- Information Theory Workshop
- 2004

In this paper, we present a new design of constructing full diversity unitary constellations using differential space-time modulation for any number of transmitter and receiver antennas. These constellations are constructed from a Bruhat decomposition which allows us to choose disjoint nonoverlapping cosets of a unitary diagonal subgroup in such a way that… (More)

This paper presents a design for full diversity unitary space-time constellations for two transmitter antennas. Our proposed constellations are based on finite reflection group codes. They have excellent diversity products compared to several unitary constellation designs in the literature.

- Terasan Niyomsataya, Ali Miri, Monica Nevins
- ICC
- 2004

Full diversity signal constellations for any numbers of transmitter antennas and for any orders which are constructed from 2 × 2 Hamiltonian matrices are investigated in this paper. The diversity product of a 2×2 Hamiltonian constellation equals one half of the Euclidean distance between two points in C. By considering the transformation from R to C, the… (More)

- Terasan Niyomsataya, Ali Miri, Monica Nevins
- IEEE Trans. Wireless Communications
- 2006

In this paper, we propose new full diversity unitary space-time codes based on Hamiltonian constellation designs. Our proposed constellations can be used for any number of antennas and for any data rate. For two transmitter antennas, the constellations are constructed from cyclic group codes. For a larger number of transmitter antennas, the design employs… (More)

- Terasan Niyomsataya, Ali Miri, Monica Nevins
- IET Communications
- 2007

We present a closed form upper bound for the average pairwise error probabilities (PEP) of space-time codes for a keyhole channel. It is derived from the exact conditional PEP for given fading channel coefficients, using a moment generating function-based approach. We include simulation results for varying numbers of antennas which affirm that the proposed… (More)

A full diversity constellation, that is, a set of unitary matrices whose differences have nonzero determinant, is a design criterion for codes with good performance using differential unitary space-time modulation. In this paper, we present a new Bruhat decomposition design for constructing full diversity unitary constellations for a prime number of… (More)

- Terasan Niyomsataya, Ali Miri, Monica Nevins
- IEEE Transactions on Information Theory
- 2008

This correspondence presents a construction of affine reflection group codes. The solution to the initial vector and nearest distance problem is presented for all irreducible affine reflection groups of rank n ges 2, for varying stabilizer subgroups. We use a detailed analysis of the geometry of affine reflection groups to produce a decoding algorithm which… (More)

- Terasan Niyomsataya, Ali Miri, Monica Nevins
- IEEE Trans. Information Theory
- 2008

Diversity sum, which is calculated from the Frobenius norm of the difference of two distinct elements in a signal constellation, is the significant parameter to predict a unitary group constellation having a good performance in low SNR. In this paper, we propose a method to compute the diversity sum of a unitary group constellation using a character table.… (More)

- T. Niyomsataya, A. Miri, M. Nevins
- IEEE Transactions on Information Theory
- 2009

A full diversity constellation, that is, a set of unitary matrices whose differences have nonzero determinant, is a design criterion for codes with good performance using differential unitary space-time modulation. Fixed-point free groups and the infinite group <i>SU</i>(2) have been used to produce full diversity unitary group constellations. In this… (More)