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Performance Evaluation of RAKE Receiver for Low Data Rate UWB Systems using Multipath Channels for Industrial Environments
Responsible organisation
2008 (English)Report (Other academic)
Abstract [en]

Since US FCC passed a resolution in 2002 allowing ultra wideband (UWB) transmissions within a specified unlicensed spectral mask, the interest in UWB technology has grown tremendously. The large bandwidth, low power spectral density (PSD), high multiple access capability and high resolution are some qualities of UWB technology. For UWB communication systems, the industrial environments are an important scenario. However, due to large number of metallic scatterers in the environment, the multipath offered by UWB channels is dense and many multipath components have significant energy. In this report, the performance evaluation of RAKE receivers for a single user system operating in non-line-of-sight (NLOS) scenarios in industrial environments is presented. The channels used for the evaluation are measured in a medium-sized industrial environment. In addition, the standard IEEE 802.15.4a channel model for NLOS industrial environment is used for comparison with the results of the measured channels. The performance is compared for partial RAKE (PRake) and selective RAKE (SRake) in terms of uncoded bit-error-rate (BER) with the assumption that the channel is known. The effect of different number of fingers on BER of PRake and Srake is studied. Moreover, the performance of maximal ratio combining (MRC) and equal gain combining (EGC) is compared for PRake and Srake receiver. The results also provide a performance comparison between different Tx-Rx separations. Finally, based on the simulation results, conclusions are presented considering the performance and complexity issues.

Place, publisher, year, edition, pages
2008.
Series
Blekinge Tekniska Högskola Forskningsrapport, ISSN 1103-1581 ; 4
Keyword [en]
UWB, RAKE receiver, Channel Modeling
National Category
Telecommunications Signal Processing
Identifiers
URN: urn:nbn:se:bth-00411Local ID: oai:bth.se:forskinfoEE5EFBF0DAD21BE4C125746D004EE979OAI: oai:DiVA.org:bth-00411DiVA: diva2:836308
Note
Ingvar ClaessonAvailable from: 2012-09-18 Created: 2008-06-19 Last updated: 2015-06-30Bibliographically approved

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TelecommunicationsSignal Processing

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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