Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
A New Look at Dual-Hop Relaying: Performance Limits with Hardware Impairments
KTH, Skolan för elektro- och systemteknik (EES), Signalbehandling. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.
2013 (Engelska)Ingår i: IEEE Transactions on Communications, ISSN 0090-6778, E-ISSN 1558-0857, Vol. 61, nr 11, s. 4512-4525Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Physical transceivers have hardware impairments that create distortions which degrade the performance of communication systems. The vast majority of technical contributions in the area of relaying neglect hardware impairments and, thus, assume ideal hardware. Such approximations make sense in low-rate systems, but can lead to very misleading results when analyzing future high-rate systems. This paper quantifies the impact of hardware impairments on dual-hop relaying, for both amplify-and-forward and decode-and-forward protocols. The outage probability (OP) in these practical scenarios is a function of the effective end-to-end signal-to-noise-and-distortion ratio (SNDR). This paper derives new closed-form expressions for the exact and asymptotic OPs, accounting for hardware impairments at the source, relay, and destination. A similar analysis for the ergodic capacity is also pursued, resulting in new upper bounds. We assume that both hops are subject to independent but non-identically distributed Nakagami-m fading. This paper validates that the performance loss is small at low rates, but otherwise can be very substantial. In particular, it is proved that for high signal-to-noise ratio (SNR), the end-to-end SNDR converges to a deterministic constant, coined the SNDR ceiling, which is inversely proportional to the level of impairments. This stands in contrast to the ideal hardware case in which the end-to-end SNDR grows without bound in the high-SNR regime. Finally, we provide fundamental design guidelines for selecting hardware that satisfies the requirements of a practical relaying system.

Ort, förlag, år, upplaga, sidor
IEEE Press, 2013. Vol. 61, nr 11, s. 4512-4525
Nyckelord [en]
Amplify-and-forward, Decode-and-forward, Dual-hop relaying, Ergodic capacity, Nakagami-m fading, Outage probability, Transceiver hardware impairments
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:kth:diva-139985DOI: 10.1109/TCOMM.2013.100913.130282ISI: 000330223000009Scopus ID: 2-s2.0-84890440160OAI: oai:DiVA.org:kth-139985DiVA, id: diva2:689160
Forskningsfinansiär
Vetenskapsrådet, 2012-228EU, Europeiska forskningsrådet, 305123 MOREVinnova
Anmärkning

QC 20140120

Tillgänglig från: 2014-01-20 Skapad: 2014-01-16 Senast uppdaterad: 2017-12-06Bibliografiskt granskad

Open Access i DiVA

fulltext(1819 kB)167 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 1819 kBChecksumma SHA-512
8eef13700adbe2d96534bfc4e287c96aa18f1d9abd3af316d780fa39c796e9991d8cede916cb618da2b7c6dc5d748e9f0278118a6859ab77a4fa90ab8b20cd30
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltextScopusFulltext in IEEEXplore

Sök vidare i DiVA

Av författaren/redaktören
Björnson, Emil
Av organisationen
SignalbehandlingACCESS Linnaeus Centre
I samma tidskrift
IEEE Transactions on Communications
Elektroteknik och elektronik

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 167 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 142 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf