Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Adaptive Modulation and Coding with Queue Awareness in Cognitive Incremental Decode-and-Forward Relay Networks
Blekinge Institute of Technology, Faculty of Computing, Department of Communication Systems.
Blekinge Institute of Technology, Faculty of Computing, Department of Communication Systems.
Blekinge Institute of Technology, Faculty of Computing, Department of Communication Systems.
2014 (English)Conference paper, (Refereed)
Abstract [en]

This paper studies the performance of adaptive modulation and coding in a cognitive incremental decode-and-forward relaying network where a secondary source can directly communicate with a secondary destination or via an intermediate relay. To maximize transmission efficiency, a policy which flexibly switches between the relaying and direct transmission is proposed. In particular, the transmission, which gives higher average transmission efficiency, will be selected for the communication. Specifically, the direct transmission will be chosen if its instantaneous signal-to-noise ratio (SNR) is higher than one half of that of the relaying transmission. In this case, the appropriate modulation and coding scheme (MCS) of the direct transmission is selected only based on its instantaneous SNR. In the relaying transmission, since the MCS of the transmissions from the source to the relay and from the relay to the destination are implemented independently to each other, buffering of packets at the relay is necessary. To avoid buffer overflow at the relay, the MCS for the relaying transmission is selected by considering both the queue state and the respective instantaneous SNR. Finally, a finite-state Markov chain is modeled to analyze key performance indicators such as outage probability and average transmission efficiency of the cognitive relay network.

Place, publisher, year, edition, pages
IEEE , 2014. 1453-1459 p.
Series
IEEE International Conference on Communications, ISSN 1550-3607
Keyword [en]
Adaptive Coding, Adaptive Modulation, Queue Awarness, Markov Chain, Relay Networks, Cognitive Radio
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:bth-6565DOI: 10.1109/ICC.2014.6883526ISI: 000366666801099ISBN: 978-1-4799-2003-7 (electronic)OAI: oai:DiVA.org:bth-6565DiVA: diva2:834083
Conference
IEEE International Conference on Communications, Sydney, Australia
Available from: 2014-11-14 Created: 2014-11-14 Last updated: 2017-03-08Bibliographically approved

Open Access in DiVA

fulltext(621 kB)146 downloads
File information
File name FULLTEXT01.pdfFile size 621 kBChecksum SHA-512
0d37f6795fa33b60244c40a9aaa1ac01c576f632862853ee1076dcb0430f33561f4fe80ef377d33196a2a65e976581c622c49953154cb2ff7b46f49a3985504b
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Chu, Thi My ChinhPhan, HocZepernick, Hans-Jürgen
By organisation
Department of Communication Systems
Telecommunications

Search outside of DiVA

GoogleGoogle Scholar
Total: 146 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 125 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf