University of Oulu

A. Padmanabhan, V. Tervo, Jiguang He, M. Juntti and T. Matsumoto, "Minimum power based relay selection for orthogonal multiple access relay networks," 2017 European Conference on Networks and Communications (EuCNC), Oulu, 2017, pp. 1-5. doi: 10.1109/EuCNC.2017.7980700

Minimum power based relay selection for orthogonal multiple access relay networks

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Author: Padmanabhan, Ayswarya1; Tervo, Valtteri1; He, Jiguang1;
Organizations: 1Centre for Wireless Communications - Radio Technologies (CWC-RT), University of Oulu, Finland - FI-90014
2School of Information Science, Japan Advanced Institute of Science and Technology (JAIST), Asahi-Dai 1-1, Nomi, Ishikawa, Japan 923-1292
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.7 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2017
Publish Date: 2018-06-28


We analyze the performance of a multi-source multi-helper transmission with lossy forward (LF) relaying. In LF, estimates at the relay are encoded and forwarded to the destination for improving the reliability of the received sequence transmitted from the multiple source nodes. Unlike the conventional decode-and-forward (DF) relaying, LF sends the data even in the case where decoding is not error-free. We extend the results of the channel with multiple sources and a single helper to perform relay selection by utilizing the union of rate regions. A power minimization problem is formulated using the above strategy and solved by exploiting the successive convex approximation (SCA) technique. Numerical results are presented to show that the proposed relay selection method achieves the same performance as the exhaustive search.

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ISBN: 978-1-5386-3873-6
ISBN Print: 978-1-5386-3874-3
Pages: 1 - 5
DOI: 10.1109/EuCNC.2017.7980700
Host publication: 2017 European Conference on Networks and Communications (EuCNC)
Conference: European Conference on Networks and Communications
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
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