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dc.contributor.author
Esli, Celal
dc.contributor.author
Wittneben, Armin
dc.date.accessioned
2021-07-26T15:37:19Z
dc.date.available
2017-06-08T19:53:36Z
dc.date.available
2021-07-26T15:37:19Z
dc.date.issued
2008
dc.identifier.isbn
1-4244-2940-4
en_US
dc.identifier.isbn
978-1-4244-2940-0
en_US
dc.identifier.other
10.1109/ACSSC.2008.5074562
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/10402
dc.description.abstract
We consider a coherent multiuser relaying network, where a number of source-destination pairs communicate concurrently over the same physical channel and a set of amplify-and-forward relays assist them. It has been shown recently that distributed phase synchronization can be avoided in coherent forwarding schemes. However, the uplink and downlink channel estimates at the relays used for gain allocation, so as the signal-to-noise plus interference ratios (SINRs) at the destinations, are severely affected by the uncertainty at the local oscillator phase offsets, which are modeled as Gaussian random variables. We propose a worst-case robust design for relay gain allocation assuming that the phase uncertainties at the relays are bounded within a defined range, which is determined according to the desired probability of assurance. The corresponding quasi-convex optimization problem is formulated as a semidefinite program. It has been shown by the simulations that the robust design provides a substantial SINR gain over the non-robust approach.
en_US
dc.language.iso
en
en_US
dc.publisher
IEEE
en_US
dc.title
Robust gain allocation against phase uncertainty at the relays for multiuser cooperative networks
en_US
dc.type
Conference Paper
ethz.book.title
2008 42nd Asilomar Conference on Signals, Systems and Computers
en_US
ethz.pages.start
1000
en_US
ethz.pages.end
1004
en_US
ethz.event
42nd Asilomar Conference on Signals, Systems and Computers
en_US
ethz.event.location
Pacific Grove, CA, USA
en_US
ethz.event.date
October 26-29, 2008
en_US
ethz.publication.place
Piscataway, NJ
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02140 - Dep. Inf.technologie und Elektrotechnik / Dep. of Inform.Technol. Electrical Eng.::02637 - Institut für Kommunikationstechnik / Communication Technology Laboratory::03608 - Wittneben, Armin / Wittneben, Armin
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02140 - Dep. Inf.technologie und Elektrotechnik / Dep. of Inform.Technol. Electrical Eng.::02637 - Institut für Kommunikationstechnik / Communication Technology Laboratory::03608 - Wittneben, Armin / Wittneben, Armin
ethz.date.deposited
2017-06-08T19:53:45Z
ethz.source
ECIT
ethz.identifier.importid
imp59364bef9617c90942
ethz.ecitpid
pub:21412
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2017-07-15T20:50:58Z
ethz.rosetta.lastUpdated
2022-03-29T10:40:32Z
ethz.rosetta.versionExported
true
ethz.COinS
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