Results 21 to 30 of about 415,790 (230)

A Coverage Criterion for Spaced Seeds and its Applications to Support Vector Machine String Kernels and k-Mer Distances [PDF]

open access: yes, 2010
Spaced seeds have been recently shown to not only detect more alignments, but also to give a more accurate measure of phylogenetic distances (Boden et al., 2013, Horwege et al., 2014, Leimeister et al., 2014), and to provide a lower misclassification ...
Laurent Noé   +14 more
core   +3 more sources

Enhanced Coordinate Interleaved OFDM With Index Modulation

open access: yesIEEE Access, 2017
Orthogonal frequency-division multiplexing with index modulation (OFDM-IM) has attracted much attention in recent years. In OFDM-IM, the information bits of a block are generally divided into several subblocks, each of which is further split into two ...
Yun Liu   +5 more
doaj   +1 more source

Adsorption of hard spheres: structure and effective density according to the potential distribution theorem [PDF]

open access: yes, 2011
We propose a new type of effective densities via the potential distribution theorem. These densities are for the sake of enabling the mapping of the free energy of a uniform fluid onto that of a nonuniform fluid.
Lee, L. L., Pellicane, G.
core   +4 more sources

Real Time Decoding of Color Symbol for Optical Positioning System

open access: yesInternational Journal of Advanced Robotic Systems, 2015
This paper presents the design and real-time decoding of a color symbol that can be used as a reference marker for optical navigation. The designed symbol has a circular shape and is printed on paper using two distinct colors.
Abdul Waheed Malik   +4 more
doaj   +1 more source

Locality and Availability in Distributed Storage [PDF]

open access: yes, 2014
This paper studies the problem of code symbol availability: a code symbol is said to have $(r, t)$-availability if it can be reconstructed from $t$ disjoint groups of other symbols, each of size at most $r$. For example, $3$-replication supports $(1, 2)$-
Dimakis, Alexandros G.   +3 more
core   +1 more source

DF Relayed Subcarrier FSO Links over Malaga Turbulence Channels with Phase Noise and Non-Zero Boresight Pointing Errors

open access: yesApplied Sciences, 2018
Subcarrier free-space optical (FSO) systems using coherent recovery techniques at the receiver have acquired growing research interest in recent times.
George K. Varotsos   +4 more
doaj   +1 more source

Linear Constellation Precoded OFDM With Interleaved Subcarrier Index Modulation

open access: yesIEEE Access, 2019
Orthogonal frequency-division multiplexing with index modulation (OFDM-IM) is an emerging and promising multicarrier transmission technique; however, frequency diversity achievement requires further investigation for the OFDM-IM.
Qingbo Wang   +3 more
doaj   +1 more source

Worst-Case Routing Performance Evaluation of Sensor Networks [PDF]

open access: yes, 2007
Successful sensor network applications depends heavily on the ability of these networks to reliably and reasonably perform under the worst-case scenarios, extreme and unusual events for which many such networks are designed to detect.
Soedarmadji, Edwin
core   +1 more source

Preamble design using embedded signalling for OFDM broadcast systems based on reduced-complexity distance detection

open access: yes, 2011
The second generation digital terrestrial television broadcasting standard (DVB-T2) adopts the so-called P1 symbol as the preamble for initial synchronization.
Chen, Sheng   +4 more
core   +1 more source

Soft metrics and their Performance Analysis for Optimal Data Detection in the Presence of Strong Oscillator Phase Noise [PDF]

open access: yes, 2013
In this paper, we address the classical problem of maximum-likelihood (ML) detection of data in the presence of random phase noise. We consider a system, where the random phase noise affecting the received signal is first compensated by a tracker ...
Eriksson, Thomas   +3 more
core   +2 more sources

Home - About - Disclaimer - Privacy