Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Christopher Knievel"'
Publikováno v:
IEEE Open Journal of Intelligent Transportation Systems, Vol 4, Pp 71-82 (2023)
Driver assistance systems are increasingly becoming part of the standard equipment of vehicles and thus contribute to road safety. However, as they become more widespread, the requirements for cost efficiency are also increasing, and so few and inexp
Externí odkaz:
https://doaj.org/article/84a813e108b14df594e658fd01d459c9
Autor:
Christopher Knievel, Peter Adam Hoeher
Publikováno v:
Journal of Electrical and Computer Engineering, Vol 2012 (2012)
Evolutionary algorithms, in particular particle swarm optimization (PSO), have recently received much attention. PSO has successfully been applied to a wide range of technical optimization problems, including channel estimation. However, most publica
Externí odkaz:
https://doaj.org/article/97f633e97c4e43579c6d891f1cf66b2a
Autor:
Christopher Knievel, Peter Adam Hoeher
Publikováno v:
IEEE Transactions on Communications. 62:2422-2431
Coherent detection is commonly facilitated by means of pilot-aided channel estimation. While this approach offers a high estimation accuracy, the spectral and power efficiencies are reduced due to the pilot overhead. In the case that redundancy due t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b59409964389831dae39890172061bcd
https://doi.org/10.1109/tcomm.2014.2323068
https://doi.org/10.1109/tcomm.2014.2323068
Publikováno v:
IEEE Communications Letters. 16:1996-1999
Nowadays, message combining is an essential component in most digital communication systems. Correlation between random measures has a significant impact on the combining process. In order to provide the best estimate after combining, correlation mus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1e7e53d94f9c3bf275e30fd6965fbeb
https://doi.org/10.1109/lcomm.2012.102612.121814
https://doi.org/10.1109/lcomm.2012.102612.121814
Publikováno v:
IEEE Transactions on Communications. 60:1599-1609
A graph-based receiver is presented that iteratively performs soft channel estimation and soft data detection. Reliability information of data symbols is utilized to improve channel estimation, and in turn, soft channel estimates refine data symbol e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::966241da42948bc15b5a28960eec3bbf
https://doi.org/10.1109/tcomm.2012.042712.110108
https://doi.org/10.1109/tcomm.2012.042712.110108
Publikováno v:
ICC
In most modern wireless systems, adaptive modulation and channel coding is applied to achieve a high spectral efficiency. Hence, suitable receivers need to support a large variety of modulation and channel coding schemes (MCS) while maintaining a low
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4521ba2dcafe761a7d1dd57a78fb49a4
https://doi.org/10.1109/icc.2013.6655342
https://doi.org/10.1109/icc.2013.6655342
Publikováno v:
VTC Spring
The principles and benefits of soft decisions are well known and widely applied. The advantage of knowing that a decision is reliable or not is obvious. Belief propagation within a factor graph enables a unified use of soft information for both chann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1c4ed33139bf13e566b929eba550368
https://doi.org/10.1109/vetecs.2012.6240138
https://doi.org/10.1109/vetecs.2012.6240138
Publikováno v:
VTC Fall
The substantial gains promised by multi-antenna systems require accurate channel knowledge, at least at the receiver side. Furthermore, the complexity of most receivers becomes unfeasible when the number of transmit antennas gets large (known as "lar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9cad2dcfba57d4d6356770acd15d51c
https://doi.org/10.1109/vetecf.2011.6093090
https://doi.org/10.1109/vetecf.2011.6093090
Publikováno v:
VTC Spring
Iterative receiver structures that jointly perform channel estimation and decoding promise substantial performance gains. However, these gains only materialize with sufficiently accurate initial channel estimates. In this paper, initialization by mul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c23a0e3dbb26d619f52919330b0c1a11
https://doi.org/10.1109/vetecs.2011.5956429
https://doi.org/10.1109/vetecs.2011.5956429
Publikováno v:
ICC
We address joint channel estimation and data detection based on factor graphs. The considered graph-based approach utilizes reliability information of channel estimates to facilitate soft-output data detection, and in-turn reliability information abo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b1d401504e19162552838be211164a6
https://doi.org/10.1109/icc.2010.5502317
https://doi.org/10.1109/icc.2010.5502317