Channel norm-based user scheduler in coordinated multi-point systems

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Fältnamn	Indikatorer	Metadata
000		03068naa a2200541 4500
001		oai:DiVA.org:kth-35653
003		SwePub
008		110704s2009 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-356532 URI
024	7	a https://doi.org/10.1109/GLOCOM.2009.54257112 DOI
040		a (SwePub)kth
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a kon2 swepub-publicationtype
100	1	a Han, Shengqianu Beihang University, Beijing, China4 aut
245	1 0	a Channel norm-based user scheduler in coordinated multi-point systems
264	1	c 2009
338		a print2 rdacarrier
500		a QC 20110705 QC 20111107
520		a In this paper, we address the problem of user scheduling in downlink coordinated multi-point transmission (CoMP) systems, where multiple users are selected and then served with zero forcing beamformer simultaneously by several cooperative base stations (BSs). To reduce the enormous overhead led by obtaining full channel state information at the transmitter, a low-feedback user scheduling method called channel norm-based user scheduler (NUS), is proposed by exploiting the asymmetric channel feature of CoMP systems. Simulation results show that the channel norm provides sufficient information for user scheduling when each BS has one antenna, where the performance gap between the NUS and the greedy user selection (GUS) is negligible with respect to both the cell average throughput and the cell edge throughput. When each BS has multiple antennas, NUS is inferior to GUS, but still significantly outperforms the uncoordinated systems.
650	7	a TEKNIK OCH TEKNOLOGIERx Elektroteknik och elektronikx Telekommunikation0 (SwePub)202042 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Electrical Engineering, Electronic Engineering, Information Engineeringx Telecommunications0 (SwePub)202042 hsv//eng
653		a Asymmetric channel
653		a Beam formers
653		a Cell averages
653		a Cell edges
653		a Channel state information at the transmitters
653		a Multiple antenna
653		a Multiple user
653		a Simulation result
653		a User scheduling
653		a User selection
653		a Zero-forcing
653		a Antennas
653		a Bioinformatics
653		a Feedback
653		a State feedback
653		a Scheduling
653		a Telecommunication
653		a Telekommunikation
700	1	a Yang, Chenyangu Beihang University, Beijing, China4 aut
700	1	a Bengtsson, Mats,d 1967-u KTH,Signalbehandling,ACCESS Linnaeus Centre4 aut0 (Swepub:kth)u1xsra3p
700	1	a Perez-Neira, Ana I.u University Polit`ecnica de Catalunya Barcelona, Spain4 aut
710	2	a Beihang University, Beijing, Chinab Signalbehandling4 org
773	0	t GLOBECOM - IEEE Global Telecommunications Conferencez 9781424441488
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-35653
856	4 8	u https://doi.org/10.1109/GLOCOM.2009.5425711

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