Computer Science > Information Theory
arXiv:1504.02242 (cs)
[Submitted on 9 Apr 2015]
Title:Achievable Rates for the Fading Half-Duplex Single Relay Selection Network Using Buffer-Aided Relaying
View a PDF of the paper titled Achievable Rates for the Fading Half-Duplex Single Relay Selection Network Using Buffer-Aided Relaying, by Nikola Zlatanov and 1 other authors
View PDFAbstract:In the half-duplex single relay selection network, comprised of a source, $M$ half-duplex relays, and a destination, only one relay is active at any given time, i.e., only one relay receives or transmits, and the other relays are inactive, i.e., they do not receive nor transmit. The capacity of this network, when all links are affected by independent slow time-continuous fading and additive white Gaussian noise (AWGN), is still unknown, and only achievable average rates have been reported in the literature so far. In this paper, we present new achievable average rates for this network which are larger than the best known average rates. These new average rates are achieved with a buffer-aided relaying protocol. Since the developed buffer-aided protocol introduces unbounded delay, we also devise a buffer-aided protocol which limits the delay at the expense of a decrease in rate. Moreover, we discuss the practical implementation of the proposed buffer-aided relaying protocols and show that they do not require more resources for channel state information acquisition than the existing relay selection protocols.
| Comments: | Published in IEEE Transactions on Wireless Communications |
| Subjects: | Information Theory (cs.IT) |
| Cite as: | arXiv:1504.02242 [cs.IT] |
| (orarXiv:1504.02242v1 [cs.IT] for this version) | |
| https://doi.org/10.48550/arXiv.1504.02242 arXiv-issued DOI via DataCite | |
| Related DOI: | https://doi.org/10.1109/TWC.2015.2421912 DOI(s) linking to related resources |
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View a PDF of the paper titled Achievable Rates for the Fading Half-Duplex Single Relay Selection Network Using Buffer-Aided Relaying, by Nikola Zlatanov and 1 other authors
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