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Distributed space-frequency coding for cooperative diversity over broadband relay channels with DF relaying

Al-nahari, Azzam LU ; Seddik, K. G.; Dessouky, M. I. and Abd El-Samie, F. E. (2012) In IEEE Transactions on Vehicular Technology 61(7). p.3266-3272
Abstract
Multipath fading is one of the main challenges in transmission over wireless broadband relay channels due to frequency selectivity, which may deteriorate the received signal. Exploiting the extra source of multipath diversity, aside from cooperative (user) diversity, is important when coping with these wireless channel limitations. In this correspondence, we propose a new distributed space-frequency code (SFC) for broadband fading relay channels that can exploit both the spatial and multipath diversities in a distributed fashion. An upper bound for pairwise error probability (PEP) is derived, and from this PEP bound, we show that the proposed code achieves a diversity of order NL, where N is the number of relay nodes, and L is the channel... (More)
Multipath fading is one of the main challenges in transmission over wireless broadband relay channels due to frequency selectivity, which may deteriorate the received signal. Exploiting the extra source of multipath diversity, aside from cooperative (user) diversity, is important when coping with these wireless channel limitations. In this correspondence, we propose a new distributed space-frequency code (SFC) for broadband fading relay channels that can exploit both the spatial and multipath diversities in a distributed fashion. An upper bound for pairwise error probability (PEP) is derived, and from this PEP bound, we show that the proposed code achieves a diversity of order NL, where N is the number of relay nodes, and L is the channel memory length. The decode-and-forward (DF) protocol and erroneous decoding at the relay nodes are considered. Moreover, it is shown that the proposed code structure achieves the maximum coding gain among the linearly coded systems over channels with uniform power delay profiles. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Transactions on Vehicular Technology
volume
61
issue
7
pages
3266 - 3272
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:84866492656
ISSN
1939-9359
DOI
10.1109/TVT.2012.2202134
language
English
LU publication?
no
id
46456992-4f06-4624-9d81-8f1666daf83a (old id 3241748)
date added to LUP
2012-12-13 14:57:06
date last changed
2017-01-01 03:02:51
@article{46456992-4f06-4624-9d81-8f1666daf83a,
  abstract     = {Multipath fading is one of the main challenges in transmission over wireless broadband relay channels due to frequency selectivity, which may deteriorate the received signal. Exploiting the extra source of multipath diversity, aside from cooperative (user) diversity, is important when coping with these wireless channel limitations. In this correspondence, we propose a new distributed space-frequency code (SFC) for broadband fading relay channels that can exploit both the spatial and multipath diversities in a distributed fashion. An upper bound for pairwise error probability (PEP) is derived, and from this PEP bound, we show that the proposed code achieves a diversity of order NL, where N is the number of relay nodes, and L is the channel memory length. The decode-and-forward (DF) protocol and erroneous decoding at the relay nodes are considered. Moreover, it is shown that the proposed code structure achieves the maximum coding gain among the linearly coded systems over channels with uniform power delay profiles.},
  author       = {Al-nahari, Azzam and Seddik, K. G. and Dessouky, M. I. and Abd El-Samie, F. E.},
  issn         = {1939-9359},
  language     = {eng},
  number       = {7},
  pages        = {3266--3272},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Vehicular Technology},
  title        = {Distributed space-frequency coding for cooperative diversity over broadband relay channels with DF relaying},
  url          = {http://dx.doi.org/10.1109/TVT.2012.2202134},
  volume       = {61},
  year         = {2012},
}