http://iet.metastore.ingenta.com
1887

Relay selection with transmit precoding design for multiple-input multiple-output amplify-and-forward relay network

Relay selection with transmit precoding design for multiple-input multiple-output amplify-and-forward relay network

For access to this article, please select a purchase option:

Buy article PDF
$19.95
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Communications — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

By employing the amplify-and-forward relaying strategy, a relay selection method with simplified precoding is proposed for two-hop multi-relay channels. The proposed method consists of two parts. In the first part, the authors present an optimal beamforming scheme with full channel state information (CSI) and derive a simplified and analytic expression for the output SNR through each relay, thereby selecting the best relay. The second part considers the transmiit precoding problem with the CSI known to the receiver only and provide a selection strategy with Grassmannian beamforming. The new algorithm chooses only one relay based on the maximal received SNR to assist in transmission. It can significantly reduce the system consumption, achieve excellent bit-error-rate and average throughput and maintain full diversity order. Simulation results demonstrate that the performance of the proposed schemes with low complexity approaches towards the optimal iteration method. For practical situations with a distance attenuation factor, the performance gain of the authors schemes is also evident.

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
      • Hu, H., Yanikomeroglu, H., Falconer, D.D.: `Range extension without capacity penalty in cellular networks with digital fixed relays', IEEE Globecom, 29 November–3 December 2004, p. 3053–3057.
    8. 8)
      • Sreng, V., Yanikomeroglu, H., Falconer, D.D.: `Relayer selection strategies in cellular networks with peer-to-peer relaying', IEEE Vehicular Technology Conf., 2003.
    9. 9)
      • Y. Zhao , R. Adve , T.J. Lim . Improving amplify-and-forward relay networks: optimal power allocation versus selection. IEEE Trans. Wirel. Commun. , 8 , 3114 - 3122
    10. 10)
      • Kim, J., Han, M., Han, S.: `A new power allocation scheme with relay selection in multinode AF relay networks', IEEE Military Communications Conf., October 2007, Orlando.
    11. 11)
    12. 12)
    13. 13)
    14. 14)
    15. 15)
    16. 16)
      • Lo, C.K., Heath, R.W., Vishwawnath, S.: `Hybrid-Arq in multihop networks with opportunistic relay selection', IEEE Int. Conf. on Acoustics, Speech and Signal Processing 2007, (ICASSP 2007), 2007, 3, p. III-617–III-620.
    17. 17)
    18. 18)
    19. 19)
      • Tannious, R., Nosratinia, A.: `Spectrally efficient relay selection protocols in wireless networks', IEEE Int. Conf. on Acoustics, Speech and Signal Processing, 31 March–4 April 2008, p. 3225–3228.
    20. 20)
    21. 21)
      • A. Goldsmith . (2005) Wireless communicaitons.
    22. 22)
      • G.H. Golub , C.F. Van Loan . (1989) Matrix computations.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-com.2010.0299
Loading

Related content

content/journals/10.1049/iet-com.2010.0299
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address