oru.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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 frequency hopping in HF environments
Kungliga Tekniska Högskolan, Stockholm, Sweden.
Kungliga Tekniska Högskolan, Stockholm, Sweden.
1993 (English)In: IEEE Military Communications Conference, 1993. MILCOM '93. Conference record.: Communications on the move. Volume 1., New Jersey: IEEE Communications Society, 1993, p. 338-341Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

A frequency hopping scheme (1 bit per chip) is proposed and studied in som detail for channels in the HF-band. This band is subject to interference that varies with time and frequency, due to varying transmission and propagation conditions. To make efficient use of the available channel resource an adaptive frequency hopping algorithm has been implemented by means of a neural network to make use of the available channel information from the link quality analysis (LQA) in selecting the frequency slot in contrast to having a uniformly distributed selection process. The algorithm proposed combines the advantages of low probability of detection during transmission and reduced fading and interference disturbances when detecting transmitted signals. The disturbances not eliminated by the channel selection is further reduced by using block codes with first order soft decision decoding. The results on residual bit error rate and average signal to interference ratio are promising with an overall reduction of bit error rate of more than two ordes of magnitude at moderate signal to noise and signal to interference ratios for a course channel model based upon the results by Laycook et al.

Place, publisher, year, edition, pages
New Jersey: IEEE Communications Society, 1993. p. 338-341
Keywords [en]
adaptive frequency hopping, shortwave, neural network
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:oru:diva-40033DOI: 10.1109/MILCOM.1993.408494ISBN: 0-7803-0953-7 (print)OAI: oai:DiVA.org:oru-40033DiVA, id: diva2:774709
Conference
MILCOM ´93, Boston, USA. October 11-14, 1993.
Available from: 2014-12-28 Created: 2014-12-28 Last updated: 2017-10-17Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Stranneby, Dag

Search in DiVA

By author/editor
Stranneby, Dag
Communication Systems

Search outside of DiVA

GoogleGoogle Scholar

doi
isbn
urn-nbn

Altmetric score

doi
isbn
urn-nbn
Total: 300 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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