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Distributed space-time/frequency coding schemes for single-carrier frequency division multiple access systems

Al-nahari, Azzam LU ; Abd El-Samie, F. E. and Dessouky, M. I. (2011) In ISRN Communications and Networking
Abstract
The single carrier-frequency division multiple access (SC-FDMA) systemis a new systemthat was adopted in the standardization of the upcoming 3GPP long-term evolution (LTE). Designing diversity-achieving schemes for the SC-FDMA system is a challenging task. The codes adopted should not affect the peak-to-average power ratio (PAPR) among other constraints. In this paper, we consider the design of cooperative diversity schemes for SC-FDMA systems in the uplink direction. Specifically, two relay-assisted distributed space-time/frequency codes are proposed. The proposed distributed space-frequency code (SFC) achieves full spatial diversity in the uplink fast-fading channels, where a diversity of order three can be achieved. The proposed code... (More)
The single carrier-frequency division multiple access (SC-FDMA) systemis a new systemthat was adopted in the standardization of the upcoming 3GPP long-term evolution (LTE). Designing diversity-achieving schemes for the SC-FDMA system is a challenging task. The codes adopted should not affect the peak-to-average power ratio (PAPR) among other constraints. In this paper, we consider the design of cooperative diversity schemes for SC-FDMA systems in the uplink direction. Specifically, two relay-assisted distributed space-time/frequency codes are proposed. The proposed distributed space-frequency code (SFC) achieves full spatial diversity in the uplink fast-fading channels, where a diversity of order three can be achieved. The proposed code keeps a low PAPR, which is a good feature of the system. A minimum mean square error (MMSE) decoder is used at the receiver of the destination node. Moreover, we propose a bandwidth-efficient distributed space-time code (STC) for slow-fading relay channels. A decode-and-forward (DF) protocol is used at the relay node, and the possibility of erroneous decoding is taken into account. Simulation results demonstrate the performance improvement of the proposed schemes. (Less)
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publishing date
type
Contribution to journal
publication status
published
subject
in
ISRN Communications and Networking
publisher
Hindawi Publishing Corporation
ISSN
2090-4363
DOI
10.5402/2011/549706
language
English
LU publication?
no
id
2222f1e0-85d1-4994-9e9f-70448360b467 (old id 3241763)
date added to LUP
2012-12-13 15:12:36
date last changed
2016-06-29 09:12:09
@article{2222f1e0-85d1-4994-9e9f-70448360b467,
  abstract     = {The single carrier-frequency division multiple access (SC-FDMA) systemis a new systemthat was adopted in the standardization of the upcoming 3GPP long-term evolution (LTE). Designing diversity-achieving schemes for the SC-FDMA system is a challenging task. The codes adopted should not affect the peak-to-average power ratio (PAPR) among other constraints. In this paper, we consider the design of cooperative diversity schemes for SC-FDMA systems in the uplink direction. Specifically, two relay-assisted distributed space-time/frequency codes are proposed. The proposed distributed space-frequency code (SFC) achieves full spatial diversity in the uplink fast-fading channels, where a diversity of order three can be achieved. The proposed code keeps a low PAPR, which is a good feature of the system. A minimum mean square error (MMSE) decoder is used at the receiver of the destination node. Moreover, we propose a bandwidth-efficient distributed space-time code (STC) for slow-fading relay channels. A decode-and-forward (DF) protocol is used at the relay node, and the possibility of erroneous decoding is taken into account. Simulation results demonstrate the performance improvement of the proposed schemes.},
  author       = {Al-nahari, Azzam and Abd El-Samie, F. E. and Dessouky, M. I.},
  issn         = {2090-4363},
  language     = {eng},
  publisher    = {Hindawi Publishing Corporation},
  series       = {ISRN Communications and Networking},
  title        = {Distributed space-time/frequency coding schemes for single-carrier frequency division multiple access systems},
  url          = {http://dx.doi.org/10.5402/2011/549706},
  year         = {2011},
}