Design of quasi-orthogonal space-time block codes for cooperative wireless relay networks over frequency selective fading channels
Book chapter
Vien, Q. and Hong, E. 2009. Design of quasi-orthogonal space-time block codes for cooperative wireless relay networks over frequency selective fading channels. in: International Conference on Advanced Technologies for Communications, 2009. IEEE. pp. 275-278
Chapter title | Design of quasi-orthogonal space-time block codes for cooperative wireless relay networks over frequency selective fading channels |
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Authors | Vien, Q. and Hong, E. |
Abstract | This paper proposes a distributed quasi-orthogonal space-time block code (DQOSTBC) over frequency selective fading channels for amplify-and-forward cooperative wireless relay networks. The proposed DQOSTBC is designed to achieve maximal data rate, spatial diversity gain and full decoupling for a relay network with four active relays. These goals are obtained by precoding the received signals at each relay to form the quasi-orthogonal space-time block codes (QOSTBCs) as developed for multiple-input multiple-output systems. To avoid the intersymbol interference caused by the dispersive nature of frequency selective fading, the frequency domain equalizer is exploited in our design for low-complexity receiver. In addition, the simulation results prove that our design provides 4 dB improvement in terms of bit error rate as a benefit of applying the QOSTBC to cooperative networks. |
Keywords | Quasi-orthogonal space-time block code (QOSTBC); multipath fading; relay networks |
Page range | 275-278 |
Book title | International Conference on Advanced Technologies for Communications, 2009. |
Publisher | IEEE |
ISBN | |
Hardcover | 9781424451395 |
Publication process dates | |
Deposited | 21 Aug 2013 |
Output status | Published |
Digital Object Identifier (DOI) | https://doi.org/10.1109/ATC.2009.5349436 |
Language | English |
https://repository.mdx.ac.uk/item/84479
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