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Recently, Markov Chain Monte Carlo (MCMC) sampling methods have evolved as new promising solutions to both multiuser and multiple-input multiple-output (MIMO) detection problems. Approaches based on Gibbs sampling as a special type of MCMC methods are well suited due to their good trade-off between performance and complexity. However, it is known that(More)
We address the problem of how to use a priori information of data symbols to improve signal-to-noise ratio (SNR) estimation. Digital transmission with binary phase-shift keying (BPSK) over additive white Gaussian noise (AWGN) channels serves as a background. At the receive side, both pilot and data symbols are used to estimate the SNR. In addition, we(More)
We consider turbo equalization of ISI channels for the practically relevant case when neither channel state information nor SNR knowledge is perfect at the receive side. In particular, we investigate the influence of imperfect (uncertain) training information on the performance of several known SNR estimation algorithms. Numerical results indicate that(More)
— High-level modulation alphabets offer an additional degree of freedom compared to the binary case, since several mappings from bits to symbols are possible. Recently, it was shown that using different mappings rather than Gray coding, a tremendous performance gain for AWGN channels can be obtained with iterative demapping and decoding. In this paper we(More)
The aim of this paper is to compare detection algorithms for MIMO-OFDM transmissions by simulation. For a coded transmission, it turns out that the list sphere detector, which has been considered a favorite for many applications, is far more complex than other methods yielding the same BER performance. Moreover, iterative equalization techniques based on(More)
BACKGROUND Venetoclax, a small molecule BH3 mimetic which inhibits the anti-apoptotic protein Bcl-2, and idasanutlin, a selective MDM2 antagonist, have both shown activity as single-agent treatments in pre-clinical and clinical studies in acute myeloid leukemia (AML). In this study, we deliver the rationale and molecular basis for the combination of(More)
I am most grateful to Prof. Jürgen Lindner for the opportunity to work in his research team, the academic freedom he supported, and the chance to discuss interesting scientific problems at international conferences and symposia. Furthermore, I would like to express my gratitude to Prof. Volker Kühn for the careful proofreading of the manuscript and the(More)
We consider a coded data transmission over an intersymbol interference (ISI) channel with a coherent receiver frontend, where the channel impulse response is unknown at the receiver. Optimum receiver design with respect to minimum bit error rate requires a tree search and performs jointly channel estimation and equalization (and decoding if necessary) [1].(More)
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