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Wideband diversity in multipath channels with nonuniform power dispersion profiles

Win, MZ; Chrisikos, G and Molisch, Andreas LU (2006) In IEEE Transactions on Wireless Communications 5(5). p.1014-1022
Abstract
The focus of this paper is to derive the symbol error probability (SEP) of a Rake receiver with a limited number of fingers that track the strongest multipath components in a frequency-selective Rayleigh fading channel. We develop an analytical framework that allows the computation of the SEP for nonuniform power dispersion profiles (PDPs) and spreading bandwidth. By transforming the physical Rake receiver with correlated ordered paths into the domain of a "virtual Rake" receiver with conditionally independent virtual paths, analytical expressions for the SEP are derived in terms of the spreading bandwidth, the channel profile, and the number of combined paths. We show how our analytical results can be used to predict the performance of... (More)
The focus of this paper is to derive the symbol error probability (SEP) of a Rake receiver with a limited number of fingers that track the strongest multipath components in a frequency-selective Rayleigh fading channel. We develop an analytical framework that allows the computation of the SEP for nonuniform power dispersion profiles (PDPs) and spreading bandwidth. By transforming the physical Rake receiver with correlated ordered paths into the domain of a "virtual Rake" receiver with conditionally independent virtual paths, analytical expressions for the SEP are derived in terms of the spreading bandwidth, the channel profile, and the number of combined paths. We show how our analytical results can be used to predict the performance of various Rake architectures in environments with nonuniform PDPs using for example, the channel models defined for the next generation wireless standards. Furthermore, we validate our methodology by comparison to data obtained from channel measurements, showing good agreement with our analytically derived results. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
fading, UMTS, diversity, rake receiver
in
IEEE Transactions on Wireless Communications
volume
5
issue
5
pages
1014 - 1022
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000237524400009
  • scopus:33744747292
ISSN
1536-1276
DOI
10.1109/TWC.2006.1633354
language
English
LU publication?
yes
id
cd8028fa-2e6d-4aa7-892e-4445326807f6 (old id 409653)
date added to LUP
2007-08-16 15:58:38
date last changed
2019-02-20 07:29:37
@article{cd8028fa-2e6d-4aa7-892e-4445326807f6,
  abstract     = {The focus of this paper is to derive the symbol error probability (SEP) of a Rake receiver with a limited number of fingers that track the strongest multipath components in a frequency-selective Rayleigh fading channel. We develop an analytical framework that allows the computation of the SEP for nonuniform power dispersion profiles (PDPs) and spreading bandwidth. By transforming the physical Rake receiver with correlated ordered paths into the domain of a "virtual Rake" receiver with conditionally independent virtual paths, analytical expressions for the SEP are derived in terms of the spreading bandwidth, the channel profile, and the number of combined paths. We show how our analytical results can be used to predict the performance of various Rake architectures in environments with nonuniform PDPs using for example, the channel models defined for the next generation wireless standards. Furthermore, we validate our methodology by comparison to data obtained from channel measurements, showing good agreement with our analytically derived results.},
  author       = {Win, MZ and Chrisikos, G and Molisch, Andreas},
  issn         = {1536-1276},
  keyword      = {fading,UMTS,diversity,rake receiver},
  language     = {eng},
  number       = {5},
  pages        = {1014--1022},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Wireless Communications},
  title        = {Wideband diversity in multipath channels with nonuniform power dispersion profiles},
  url          = {http://dx.doi.org/10.1109/TWC.2006.1633354},
  volume       = {5},
  year         = {2006},
}