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- George P. Efthymoglou, Natalia Y. Ermolova, Valentine A. Aalo
- IET Communications
- 2010

In the present study, the performance of digital communication systems operating over a composite fading channel modelled by the generalised-K distribution is analysed and evaluated. Novelâ€¦ (More)

- Natalia Y. Ermolova
- IEEE Communications Letters
- 2008

In this letter, we prove that in contrast with earlier reported results the moment generating functions (MGFs) of the generalized eta - mu and re k - mu distributions are expressed in terms ofâ€¦ (More)

- Natalia Y. Ermolova, Boris Makarevitch
- 2007 IEEE 18th International Symposium onâ€¦
- 2007

In this paper, we consider the problem of adaptive resource allocation for OFDMA. Aiming at practical (low-complexity) algorithms we study disjoint subcarrier and power allocation. A number ofâ€¦ (More)

- Natalia Y. Ermolova, Sven-Gustav HÃ¤ggman
- 2004 12th European Signal Processing Conference
- 2004

Any signal-processing scheme requires evaluation of the performance. Very often in such applications the complementary error function (the Gaussian Q-function) occurs. In this paper, we present newâ€¦ (More)

- Natalia Y. Ermolova, Olav Tirkkonen
- IEEE Transactions on Wireless Communications
- 2011

In this paper, we analyze Î·-Î¼ fading radio channels with integer values of the parameter Î¼. We obtain expressions for the probability density function and outage probability in terms of elementaryâ€¦ (More)

- Natalia Y. Ermolova, Pertti Vainikainen
- IEEE Communications Letters
- 2003

The well-known relationship between the peak-to-average power ratio (PAPR) of a multicarrier signal and the autocorrelation coefficients of the generating sequence is discussed. We emphasise that lowâ€¦ (More)

- Natalia Y. Ermolova
- IEEE Communications Letters
- 2001

A method of spectral analysis for a nonlinear amplifier driven by a Gaussian signal is presented. The technique is based on the Taylor series expansion of the complex gain of an amplifier. Therefore,â€¦ (More)

- Natalia Y. Ermolova
- IET Communications
- 2009

- Natalia Y. Ermolova, Boris Makarevitch
- IEEE Transactions on Wireless Communications
- 2007

The problem of low complexity sub-optimal power and subcarrier allocation for OFDMA systems is addressed in the paper. We propose a heuristic non-iterative method that is an extension of the orderedâ€¦ (More)

- Natalia Y. Ermolova, Olav Tirkkonen
- IEEE Transactions on Wireless Communications
- 2014

In this paper, we present expressions for the cumulative distribution function (CDF) of a specially constructed random variable (RV) represented by the ratio of two generalized RVs. The obtainedâ€¦ (More)