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Distributed space-time code for amplify-and-forward cooperative networks

Al-nahari, Azzam LU ; Abd El-Samie, Fathi and Dessouky, Moawad (2010) 5th International Conference on Future Information Technology (FutureTech) In [Host publication title missing]
Abstract
Cooperative diversity using distributed space-time codes has been recently proposed to form virtual antennas in order to achieve diversity gain. In this paper, we propose a distributed space-time coding with amplify-and-forward relaying. Motivated by protocol (III) presented in, we propose a distributed space-time code for an arbitrary number of relay nodes. The pairwise error probability (PEP) is derived and the theory analysis demonstrates that our protocol achieves a diversity of order N + 1 where N is the number of relay nodes. Quasi-orthogonal space-time codes are used as they give much better performance than random linear-dispersion codes. As the transmission power of the source node is a critical parameter in this protocol because... (More)
Cooperative diversity using distributed space-time codes has been recently proposed to form virtual antennas in order to achieve diversity gain. In this paper, we propose a distributed space-time coding with amplify-and-forward relaying. Motivated by protocol (III) presented in, we propose a distributed space-time code for an arbitrary number of relay nodes. The pairwise error probability (PEP) is derived and the theory analysis demonstrates that our protocol achieves a diversity of order N + 1 where N is the number of relay nodes. Quasi-orthogonal space-time codes are used as they give much better performance than random linear-dispersion codes. As the transmission power of the source node is a critical parameter in this protocol because it transmits in both phases, the optimal power allocation is derived using numerical and theoretical analysis. Simulation results demonstrate an improvement over the existing orthogonal protocols for different source-destination channel conditions. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
conference name
5th International Conference on Future Information Technology (FutureTech)
external identifiers
  • Scopus:77954421961
ISBN
978-1-4244-6948-2
DOI
10.1109/FUTURETECH.2010.5482702
language
English
LU publication?
no
id
910483f7-3c49-4d35-b178-94bd03a58074 (old id 3515816)
date added to LUP
2013-02-21 14:48:33
date last changed
2016-10-13 04:53:02
@misc{910483f7-3c49-4d35-b178-94bd03a58074,
  abstract     = {Cooperative diversity using distributed space-time codes has been recently proposed to form virtual antennas in order to achieve diversity gain. In this paper, we propose a distributed space-time coding with amplify-and-forward relaying. Motivated by protocol (III) presented in, we propose a distributed space-time code for an arbitrary number of relay nodes. The pairwise error probability (PEP) is derived and the theory analysis demonstrates that our protocol achieves a diversity of order N + 1 where N is the number of relay nodes. Quasi-orthogonal space-time codes are used as they give much better performance than random linear-dispersion codes. As the transmission power of the source node is a critical parameter in this protocol because it transmits in both phases, the optimal power allocation is derived using numerical and theoretical analysis. Simulation results demonstrate an improvement over the existing orthogonal protocols for different source-destination channel conditions.},
  author       = {Al-nahari, Azzam and Abd El-Samie, Fathi and Dessouky, Moawad},
  isbn         = {978-1-4244-6948-2},
  language     = {eng},
  series       = {[Host publication title missing]},
  title        = {Distributed space-time code for amplify-and-forward cooperative networks},
  url          = {http://dx.doi.org/10.1109/FUTURETECH.2010.5482702},
  year         = {2010},
}