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Robust and distribu...
Robust and distributed beamforming
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- Zheng, Gan (författare)
- Department of Electrical and Electronic Engineering, University College London, London, WC1E 7JE, UK.
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- Wong, Kai-Kit (författare)
- Department of Electrical and Electronic Engineering, University College London, London, WC1E 7JE, UK.
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- Paulraj, Arogyasvsami (författare)
- Information Systems Laboratory, Stanford University, US
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- Ottersten, Björn, 1961- (författare)
- KTH,Signalbehandling,ACCESS Linnaeus Centre
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Department of Electrical and Electronic Engineering, University College London, London, WC1E 7JE, UK Information Systems Laboratory, Stanford University, US (creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: 2009 International Conference on Wireless Communications and Signal Processing. - 9781424448562 ; , s. 1629-1633
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This paper studies the use of amplify-and-forward (AF) relays for robust beamforming, with the aid of imperfect channel state information (CSI) at the sender. In particular, the maximization of the worst-case signal-to-noise ratio (SNR) at the destination terminal is studied under a bounded spherical region for the norm of CSI error vector. We show that under a condition on the estimated CSI quality, the robust-optimal collaborative-relay beamforming (CRBF) can be obtained by S-Procedure and rank relaxation techniques. In addition, a distributed algorithm is proposed by examining the structure of the optimal CRBF.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Nyckelord
- Collaborative beamforming
- MIMO
- Relay
- Amplify-and-forward
- Distributed algorithm
- Distributed beamforming
- Error vector
- Imperfect channel state information
- MIMO relay
- Relaxation techniques
- Robust beamforming
- S-procedures
- Beamforming
- Optimization
- Signal processing
- Signal to noise ratio
- Channel state information
- Telecommunication
- Telekommunikation
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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