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An output-threshold multiple-relay-selection (OT-MRS) scheme for dual-hop multibranch cooperative wireless networks is proposed. In this scheme, the first Lc (nonordered) relays are sequentially selected out of L relays such that the SNR of the maximal ratio combined Lc relayed paths and the direct path exceeds a preset threshold. Analytical results for the performance bounds are derived. The numerical results verify the analyses and show that OT-MRS outperforms optimal single-relay selection and generalized-selection-combining-based multiple relay-selection for low to moderately high SNRs. The proposed scheme provides more flexibility in utilizing bandwidth and spatial diversity in cooperative wireless networks.
Published in:
Vehicular Technology, IEEE Transactions on
(Volume:59
,
Issue:
6
)
Date of Publication: July 2010
- Page(s):
- 3091 - 3097
- ISSN :
- 0018-9545
- INSPEC Accession Number:
- 11464865
- Digital Object Identifier :
- 10.1109/TVT.2010.2048767
- Product Type:
- Journals & Magazines
- Date of Publication :
- 22 April 2010
- Date of Current Version :
- 12 July 2010
- Issue Date :
- July 2010
- Sponsored by :
- IEEE Vehicular Technology Society
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