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Distributed Multice...
Distributed Multicell Beamforming With Limited Intercell Coordination
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- Huang, Yongming (författare)
- School of Information Science and Engineering, Southeast University, Nanjing
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- Zheng, Gan (författare)
- Interdisciplinary Centre for Security, Reliability and Trust (SnT), University of Luxembourg
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- Bengtsson, Mats, 1967- (författare)
- KTH,ACCESS Linnaeus Centre,Signalbehandling
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- Wong, Kai-Kit (författare)
- Department of Electrical and Electronic Engineering, University College London, London
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- Yang, Luxi (författare)
- School of Information Science and Engineering, Southeast University, Nanjing, China
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- Ottersten, Björn, 1961- (författare)
- KTH,Signalbehandling,ACCESS Linnaeus Centre
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: IEEE Transactions on Signal Processing. - 1053-587X .- 1941-0476. ; 59:2, s. 728-738
- 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 distributed optimization schemes for multicell joint beamforming and power allocation in time-division-duplex (TDD) multicell downlink systems where only limited-capacity intercell information exchange is permitted. With an aim to maximize the worst-user signal-to-interference-and-noise ratio (SINR), we devise a hierarchical iterative algorithm to optimize downlink beamforming and intercell power allocation jointly in a distributed manner. The proposed scheme is proved to converge to the global optimum. For fast convergence and to reduce the burden of intercell parameter exchange, we further propose to exploit previous iterations adaptively. Results illustrate that the proposed scheme can achieve near-optimal performance even with a few iterations, hence providing a good tradeoff between performance and backhaul consumption. The performance under quantized parameter exchange is also examined.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Limited capacity backhauling
- multicell beamforming
- uplink-downlink duality
- Electrical engineering, electronics and photonics
- Elektroteknik, elektronik och fotonik
- SRA - ICT
- SRA - Informations- och kommunikationsteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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