Multilevel coding (MLC) is a practical encoding scheme for nested lattice codes based on construction D, since it saves complexity while using a hypercube shaping. On the other hand, multistage decoding is also an efficient and practical decoding scheme for MLC provided that the underlying error correcting codes of construction D are capacity achieving, which requires a powerful soft decoder fo...

In this paper, we propose a novel approach to speaker verification. One of the problems in conventional speaker verificaion techniques based on the likelihood ratio test (LRT) is that the detection performance varies widely for each hypothesized speaker when the decision threshold is held fixed. In order to cope with the problem, we incorporate the distribution of the log likelihood ratio (LLR)...

MOTIVATION Discovering cis-regulatory elements in genome sequence remains a challenging issue. Several methods rely on the optimization of some target scoring function. The information content (IC) or relative entropy of the motif has proven to be a good estimator of transcription factor DNA binding affinity. However, these information-based metrics are usually used as a posteriori statistics r...

Turbulence-induced fading is a critical performance degrading factor for underwater wireless optical communication (UWOC) systems. In this paper, we propose quasi-cyclic (QC) low-density parity-check (LDPC) code with multiple-pulse-position modulation (MPPM) to overcome turbulence-induced fading. MPPM adopted as compromise between the low-power efficiency of on–off keying (OOK) and low bandwidt...

Ankle inversions have been studied extensively during standing conditions. However, inversion traumas occur during more dynamic conditions, like walking. Therefore in this study sudden ankle inversions were elicited in 12 healthy subjects who stepped on a trap door while walking on a treadmill. First, 10 control trials (0 degrees of rotation) were presented. Then, 20 stimulus (25 degrees of rot...

Tides induce a semimajor axis rate of +38.08 ± 0.19 mm/yr, corresponding to an acceleration of the Moon's orbital mean longitude of -25.82 ± 0.13 "/cent2, as determined by the analysis of 43 yr of Lunar Laser Ranging (LLR) data. The LLR result is consistent with analyses made with different data spans, different analysis techniques, analysis of optical observations, and independent knowledge of...

Little is known about how the central nervous system prepares postural responses differently in anticipated compared to non-anticipated perturbations. To investigate this, participants were exposed to translational and rotational perturbations presented in a blocked (anticipated) and a random (non-anticipated) design. The preparatory setting ('central set') was measured by H-reflexes, motor-evo...

Cooperative communication describes strategies to transfer the data from a source to a destination by employing relay nodes between them. It is considered as one of the most efficient techniques to overcome fading in wireless networks since it can achieve spatial diversity. Employing all the relays in the network to transfer the data, consumes high power and cost. Selection of one or more relay...

In this paper, error performance analysis of decode-and-forward (DF)-based cooperative vehicular networks with relay selection is investigated. All of the links in the system are modeled as cascaded Nakagami-m distributed random variables which provide a realistic description of an intervehicular channel. We employ virtual-noise (VN)-based demodulation, maximum likelihood (ML) demodulation, coo...

This thesis gives an introduction to basic concepts of information geometry, a theory that uses notions of differential geometry to describe information and probabilities. These concepts are applied to the analytic description of an iterative receiver for bit interleaved coded modulation (BICM). The operation of the receiver’s subblocks are recognized as implicit projections of input probabilit...